2x-7=13 what is answer

Answers

Answer 1

Answer:

x = 10

Step-by-step explanation:

2x-7=13

2x = 20  (Add 7 to both sides)

x = 10 (Divide by 2 on both sides)

Answer 2

Answer:

10

Step-by-step explanation:

2x - 7 = 13

2x = 13+7 = 20

x = 20/2 = 10


Related Questions

A pilot flies 416 miles from Tampa to Atlanta 5 times in one week. She flies 721 miles from Atlanta to Dallas 8 times. What is the total number of miles she flies? ANSWERS!!!!

Answers

Answer:

416 x 5 = 2080

721 x 8 = 5768

5768 + 2080 = 7848. Have a great day.

PLEASE HELP ME
Find the surface area of the sphere. *

Answers

We have been given a sphere with radius 8.6 ft. We are asked to find the surface area of the given sphere.

We know that surface area of a sphere is equal to [tex]4\pi r^2[/tex].

[tex]A=4\pi r^2[/tex]

Upon substituting [tex]r=8.6\text{ ft}[/tex] in surface area formula, we will get:

[tex]A=4\pi (8.6\text{ ft})^2[/tex]

[tex]A=4\pi \cdot 73.96\text{ ft}^2[/tex]

[tex]A=295.84\pi\text{ ft}^2[/tex]

[tex]A=929.4087706\text{ ft}^2[/tex]

Upon rounding to nearest hundredth, we will get:

[tex]A\approx 929.41\text{ ft}^2[/tex]

Therefore, the surface of the given sphere would be approximately [tex]929.41\text{ ft}^2[/tex].

f(x)=4x2−16
find the zeros of the function

Answers

Answer:

x=2 x=-2

Step-by-step explanation:

f(x)=4x^2−16

f(x)=4(x^2-4)

f(x)=4(x-2)(x+2)

x=2 x=-2

Hope this helps! Please mark brainliest :)

Final answer:

The zeros of the function f(x) = 4x2 − 16 are found by factoring the quadratic equation, which results in two solutions x = -2 and x = 2.

Explanation:

To find the zeros of the function f(x) = 4x2 − 16, we need to set the function equal to zero and solve for x:

0 = 4x2 - 16

To solve this quadratic equation, you can factor out the common factor of 4:

0 = 4(x2 - 4)

We now have a difference of squares, which can be factored further:

0 = 4(x + 2)(x - 2)

Set each factor in the parentheses equal to zero:

x + 2 = 0 → x = -2x - 2 = 0 → x = 2

So the zeros of the function are x = -2 and x = 2.

Easy question

Topic: Volume

Use the other attachment to help u what formula is it

Answers

Answer:

see below

Step-by-step explanation:

V = l*w*h for the rectangular  tank

V = 70* 40*40

  =112000 cm^3 = 1mL

The water is 84000

Make this a fraction

84000/112000  = 3/4

The water fills 3/4 of the tank

1-3/4 = 1/4

It is 1/4 from the top

Find the volume of the treasure chest

V = 12*10*8 =960

Tower

V = pi r^2

  3.14 * 10^2 *10

  =3140

Water + chest + tower

84000+960+3140 =88100

This is less than 112000 so the water will not overflow

Answer:

a) 10 cm

b) Will not overflow

Step-by-step explanation:

8400 = base area × height

84000 = 70 × 40 × h

h = 30

From the top: 40 - 30 = 10cm

b) Capacity of the tank:

70 × 40 × 40

112,000 cm³

Combined volume of the two vessels:

(12 × 10 × 8) + (3.14 × 10² × 10)

960 + 3140

4,100 cm³

4100 = 70 × 40 × rise

rise = 1.464285715 cm

Since 1.464285715 < 10

It will not overflow

A machine can scan 12 pages in 3/5 minute. How many pages can be scanned in 1 minute?

Answers

Answer:

20 pages

Step-by-step explanation:

Answer:

20 pages

Step-by-step explanation:

3/5 minute =36sec

if 36=12

.·.60= 60×12÷36=20

Please help for both of them

Answers

Answer:

18 is for the top

6 is for the bottom

Answer:

1. C

2. D

Step-by-step explanation:

Use the multiplier method to increase £258 by 43%
You must show your working.​

Answers

To increase £258 by 43%, convert the percentage to a decimal, calculate the increased amount, and add it to the original amount. The increased amount to the original amount is £368.94

To increase £258 by 43% using the multiplier method:

Convert the percentage to a decimal: 43% = 0.43

Calculate the increased amount: £258 x 0.43 = £110.94

Add the increased amount to the original amount: £258 + £110.94 = £368.94

The height of a right circular cylinder is 1.5 times the radius of the base. What is the ratio of the total surface area to the lateral (curved) surface area of the cylinder?

Answers

Let r represent the radius of cylinder.

We have been given that the height of a right circular cylinder is 1.5 times the radius of the base. So the height of the cylinder would be [tex]1.5r[/tex].

We will use lateral surface area of pyramid to solve our given problem.

[tex]LSA=2\pi r h[/tex], where,

LSA = Lateral surface area of pyramid,

r = Radius,

h = height.

Upon substituting our given values in above formula, we will get:

[tex]LSA=2\pi r\cdot (1.5)r[/tex]  

Now we will find the total surface area of cylinder.

[tex]TSA=2\pi r(r+h)[/tex]

[tex]TSA=2\pi r(r+1.5r)[/tex]

[tex]TSA=2\pi r(2.5r)[/tex]

[tex]\frac{TSA}{LSA}=\frac{2\pi r(2.5r)}{2\pi r(1.5r)}[/tex]

[tex]\frac{TSA}{LSA}=\frac{2.5r}{1.5r}[/tex]

[tex]\frac{TSA}{LSA}=\frac{25}{15}[/tex]

[tex]\frac{TSA}{LSA}=\frac{5}{3}[/tex]

Therefore, the ratio of total surface area to lateral surface area is [tex]5:3[/tex].

The music teacher asked his class to vote for their favorite instrument and created a pie chart to display the results. There are
20 students in his class. Which statements are true? Check all that apply.
Popularity of Musical
Instruments
Horns
15%
Guitar
35%
Flute
20%
Piano
30%
Exactly half of the students voted for flute or guitar.
Three students voted for horns.
Less than one-third of the class voted for guitar.​

Answers

Answer:

Three students voted for horns.true

Step-by-step explanation:thats all i know

Answer:

B, D, E, F

Step-by-step explanation:

Three students voted for horns.

Thirteen students voted for piano or guitar.

Twice as many students voted for piano as horns.

Eleven students voted for flute or guitar.

what is (a^4/-7b^3)^2 simplified?

Answers

Answer:

Step-by-step explanation:

[tex](\frac{a^{4}}{-7b^{3}})^{2}=\frac{(a^{4})^{2}}{(-7b^{3})^[2}}\\\\=\frac{a^{4*2}}{(-7)^{2}b^{3*2}}\\\\=\frac{a^{8}}{49b^{6}}[/tex]

Subtract 55 from the sum of 9g and 4 when g=8

Answers

Answer:

21

Step-by-step explanation:

(9g+4)-55=

(72+4)-55=

76-55=

21

Final answer:

To find the answer, first multiply 9 by 8, then add 4, resulting in 76. Finally, subtract 55 to get the answer, which is 21.

Explanation:

To solve the problem, we need to first calculate the sum of 9g and 4 when g=8. This will be 9 × 8 + 4.

After calculating the sum, we will subtract 55 from this amount to get the final answer.

Following the steps:

Substitute the value of g:  We are given that g = 8. So, we need to find the sum of 9 * 8 and 4.Calculate the sum: The sum of 9 × 8 and 4 is 72 + 4 = 76.Subtract 55:Finally, we subtract 55 from the calculated sum: 76 - 55 = 21.

Therefore, when g = 8, subtracting 55 from the sum of 9g and 4 results in  21.

Can you please help me with this?

Answers

Answer:

30 ,345,986

Step-by-step explanation:

Kayla hit 4 homeruns at batting practice
out of 12 pitches thrown. What is the
experimental probability that Kayla will hit a
homerun at batting practice?​

Answers

Answer:

[tex]\dfrac{1}{3}[/tex]

Step-by-step explanation:

Given,

Total number of trial = 12

Total number of favorable event  = 4

Experimental probability of hitting home run is

[tex]P(home\ run)=\dfrac{Favorable\ event}{Total\ trial}[/tex]

[tex]P(home\ run)=\dfrac{4}{12}[/tex]

[tex]P(home\ run)=\dfrac{1}{3}[/tex]

Answer:1/3

Step-by-step explanation:Answer:

Step-by-step explanation:

Given,

Total number of trial = 12

Total number of favorable event  = 4

Experimental probability of hitting home run is

What is the solution to the inequality -4x < 8?
x < -2
x > -2
x < -24
x > -24

Answers

Answer:

x > -2

Step-by-step explanation:

-4x < 8

-8 < 4x

-2 < x

x > -2

Examine the number line and select all the statements that are true.
The sum of B and C is negative.
the product of A and B > the product of A and D
|A| < |D|
A - B = -2 2/3
A + D = B
The quotient of C and B is equivalent to -2/3

Answers

Answer:

the sum of B and C is negative

A + D = B

The quotient of C and B is equivelent to -2/3

Step-by-step explanation:

The quotient of C and B is equivalent to -2/3. Therefore, the correct option is option D among all the given options.

What is number line?

A picture of numbers along a straight line is called a number line. It serves as a guide for contrasting and arranging numbers. Any real number, including all whole numbers and natural numbers, can be represented by it. Just to refresh your memory, a whole number is a collection of numbers that contains all counting numbers.

Comparing numbers is made simpler by writing them on a number line. As seen in the aforementioned graphic, the integers to the left are smaller compared to the integers for the right. As an illustration, the numbers 0 and 1 are less than each other, as are the numbers -1 and -2. The sum of B and C is negative.

Therefore, the correct option is option D.

To know more about number line, here:

https://brainly.com/question/16191404

#SPJ3

how much space do all three of the soccer balls take up ?

Answers

Answer: 2713 cubic centimeter

Step-by-step explanation:

Answer:

339 cubic centimeters

Step-by-step explanation:

The formula for the volume of a sphere is [tex]\frac{4}{3}\pi r^3[/tex]. In this case, a ball with the radius of 3 centimeters would have a volume of [tex]\frac{4}{3}\pi \cdot 3^3=113.04[/tex] cubic centimeters. Multiplying this by the three soccer balls, you get about 339 cubic centimeters, or the third option. Hope this helps!

What are the solutions to the equation x2 - 4x = -1?​

Answers

Answer:

x= [tex]2-\sqrt{3}[/tex]          and          x=[tex]2+\sqrt{3}[/tex]

Step-by-step explanation:

- transfer the -1 to the other side so that the equation reads as [tex]x^{2} -4x+1[/tex]

- factor! think about what numbers add -4 but also multiply to be 1

- you may then realize that there are no numbers with those characteristics

- since that is the case, we have to use the quadratic formula, which is:

               [tex]\frac{-b+\sqrt{b^{2}-4ac }}{y}[/tex]        and         [tex]\frac{-b-\sqrt{b^{2}-4ac }}{y}[/tex]

- the equation is shown as [tex]a^{2}+b^{2}=c^{2}[/tex]

- using the numbers that correspond with those lettered values, plug it in the quadratic formulas

the solutions to the equation [tex]\( x^2 - 4x = -1 \) are \( x = 2 + \sqrt{3} \) and \( x = 2 - \sqrt{3} \)[/tex].

To find the solutions to the equation [tex]\( x^2 - 4x = -1 \)[/tex], we can follow these steps:

1. Move all terms to one side of the equation to set it equal to zero:

 [tex]\[ x^2 - 4x + 1 = 0 \][/tex]

2. We can solve this quadratic equation using the quadratic formula:

  [tex]\[ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \][/tex]

  where [tex]\( a = 1 \), \( b = -4 \), and \( c = 1 \).[/tex]

3. Plug in the values and simplify:

  [tex]\[ x = \frac{-(-4) \pm \sqrt{(-4)^2 - 4(1)(1)}}{2(1)} \] \[ x = \frac{4 \pm \sqrt{16 - 4}}{2} \] \[ x = \frac{4 \pm \sqrt{12}}{2} \] \[ x = \frac{4 \pm 2\sqrt{3}}{2} \] \[ x = 2 \pm \sqrt{3} \][/tex]

So, the solutions to the equation [tex]\( x^2 - 4x = -1 \) are \( x = 2 + \sqrt{3} \) and \( x = 2 - \sqrt{3} \)[/tex].

Write an exponential model, y=a(b)^x, given the two points (9,171) and (10,190)

Please hurry!

Answers

Answer:

[tex]y = 66.25(1.11)^x[/tex]

Step-by-step explanation:

Let's plug in 9 for x and 171 for y into the given exponential equation:

y = [tex]ab^x[/tex]

171 = [tex]ab^9[/tex]

Now do the same with (10, 190):

190 = [tex]ab^{10}[/tex]

Write them both in terms of a and set them equal:

a = 171/[tex]b^9[/tex]

a = 190/[tex]b^{10}[/tex]

171/[tex]b^9[/tex] = 190/[tex]b^{10}[/tex]

Multiply both sides by [tex]b^{10}[/tex]:

171b = 190

b = 190/171 = 10/9 ≈ 1.11

Plug this in to find a:

a = 171 / (10/9)^9 ≈ 66.25

So, the exponential model is:

[tex]y = 66.25(1.11)^x[/tex]

Answer:

y = 66.25[(10/9)^x]

Step-by-step explanation:

171 = a(b⁹)

b⁹ = 171/a

190 = a(b¹⁰)

190 = a(171/a) × b

b = 190/171

b = 10/9

(10/9)⁹ = 171/a

a = 66.24890362

Two sides of a rectangular fence are 5 5/8 feet long.The other two sides are 6 1/4 feet long.What is the perimeter?

Answers

Answer:

im not sure

Step-by-step explanation:

so sorry i didnt know the answer.

Answer:

the perimeter of the rectangle is 23.75 feet.

Step-by-step explanation:

5 5/8 × 2 = 11 1/4.

6 1/4 × 2 = 12 1/2

11 1/4 + 12 1/2 = 23 3/4 or 23.75

Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 17 feet by 17 feet by 2 inches for a patio if the concrete costs $64.00 per cubic yard?

Answers

Answer:

$114.17

Step-by-step explanation:

First we need to convert cubic yard to cubic feet.

One yard is equivalent to three feet, so one cubic yard is 3^3 = 27 cubic feet.

So the cost of one cubic feet is 64/27 = $2.3704

We also need to convert from inches to feet.

One inch is 1/12 feet, so 2 inches is 2/12 = 1/6 feet

Now we need to find the volume of the slab:

Volume = 17 * 17 * (1/6) = 48.1667 ft3

Now, to find the cost, we can use a rule of three:

1 cubic feet -> $2.3704

48.1667 cubic feet -> X

X = 48.1667 * 2.3704 = $114.1743

What is the center of the data?

Answers

The center of data is a single number that summarizes the entire data set. The median is the midpoint value of a data set, where the values are arranged in ascending or descending order. The median can be used to find the center of data when the numbers in the data set contain one or more outliers.

Answer:

The center of data is a single number that summarizes the entire data set.

Step-by-step explanation:

Which rule describes the relationship between the x- and y- coordinates on following graph?
A: y = 3x B: y = 2x + 2

Answers

Answer : B
The dot where the y- axis is 2 and x-axis is 0 would be your y-intercept . For the other 2 dots with planes (3,8) and (2,6) you would do rise over run and connect them. Go down 2 and left 1 so they meet and divide. Once you divide 2 by 1 you get 2 so your equation would be y=2x+2 a.k.a B

Answer: B

−11x 5 (−9x 3 y 4 ) fully simplify

Answers

Answer:

5940 y

Step-by-step explanation:

Simplify the following:

-11 (-9)×5×3×4 y

-9×3 = -27:

-11×5×-27×4 y

-27×4 = -108:

-11×5×-108 y

-11×5 = -55:

-108-55 y

-55 (-108) = 5940:

Answer: 5940 y

Evaluate e – 2 when e=7.

Answers

Answer:

5

Step-by-step explanation:

If e = 7, you would replace e in the expression e - 2 with 7 so that the expression becomes 7 - 2 which results in 5.

Does that help?

The answer for this is 5

You might need:

A circle has a circumference of 1,133.54 units.

What is the diameter of the circle?

units



Answer 360.81 units

Answers

Answer:

360.82 units

Step-by-step explanation:

The circle has a circumference of 1,133.54 units.

The circumference of a circle is given as:

C = πD

where D = diameter

This implies that:

1133.54 = πD

=> D = 1133.54 / π

D = 360.82 units

Its diameter is 360.82 units

Help me with this problem plzzzzzz

Answers

Answer:

B. Opposite angles add up to 180 degrees.

Step-by-step explanation:

Answer Choice B is incorrect because opposite angles are actually congruent. However, adjacent angles of a parallelogram do add up to 180 degrees.

3m + 9 - 9m = 2m + 25 whats m

Answers

Answer:

8

Step-by-step explanation:

3m + 9 -9m = 2m + 25

3m + 9 = 11m + 25

9 = 8m + 25

16/2 = 8m/2

M = 8

M is equal to the number 8

When finding the volume of a soup can, Tommy needs to calculate the area of the base. Describe what type of base Tommy’s soup can has and what formula he should use to find its area.

Answers

Answer: The base is a circle and you can use the formula (pi)r^2 the find the area of the base

Step-by-step explanation:

a soup can is a cylinder and the base of a cylinder is a circle. you can google "area of a circle calculator" on google to show you the formula

Answer:

Sample response: The soup can has a circular base. The radius measure is needed. If the diameter is given, find the radius, which is half the diameter. Square the radius and multiply that answer by pi for the base area.

Step-by-step explanation:

I just did it on edge

houses cost £100000 one year ago
now they cost £________
this is a 25% increase

Answers

The answer is 125,000

Work:
100,000 • 1.25 = 125000

Final answer:

The new cost of houses after a 25% increase from the original price of £100,000 is £125,000. You calculate this by finding 25% of £100,000, which is £25,000, and then add it to the original price.

Explanation:

The student is asking how to calculate the new cost of houses after a 25% price increase from the previous year when the houses cost
£100,000. To find the new price, we need to calculate 25% of £100,000 and then add that to the original price.

First, find 25% of £100,000:

0.25
(multiplier for 25%)
× £100,000
(original cost)
= £25,000
(the increase).

Next, add the increase to the original cost:

£100,000
+ £25,000
= £125,000.

Therefore, the new cost of the houses after a 25% increase is £125,000.

In one year the perseid metor shower had a metor appear every 1/5 5 minutes on average That same year the Leonid metor shower had a metor appear every 4/2 3 minutes on average.

Answers

In one year, the Perseid meteor shower had a meteor appear every 1 1/5 minutes on average. That same year, the Leonid meteor shower had a meteor appear every 4 2/3 minutes on average. How many more meteors fell during the Perseid meteor shower?

Answer:

325,452 meteors

Step-by-step explanation:

We all know that :

We have 365 days in a year and in each day there are 24 hours, Likewise an hour has 60 minutes

SO, the total number of minutes in a year is :

365 × 24 × 60 = 525600 minutes

For Perseid  meteor:

[tex]1 + \frac{1}{5} \\ \\ = 1 + 0.2 \\ \\ = 1.2[/tex]

So one meteor fall at 1.2 minutes interval Thus, in a year, we will have :

1 meteor - 1.2 minutes.

x meteor - 525600 minutes.

1.2x = 525600

[tex]x = \frac{525600}{1.2}[/tex]

x = 438000

∴  438,000 meteors fell during the Perseid shower.

For  Leonid meteor shower:

[tex]4 + \frac{2}{3} = 4.67[/tex]

So one meteor fall at 4.67 minutes interval Thus, in a year, we will have :

1 meteor - 4.67 minutes.

x meteors - 525600 minutes.

[tex]4.67x = 525600[/tex]

[tex]x = \frac{525600}{4.67}[/tex]

x = 112548

112,548 meteors fell during the Leonid Shower.

Finally , the numbers of more meteors that  fell during the Perseid meteor shower is calculated by the difference in the number of Perseid meteor shower and Lenoid meteor shower. i.e

438,000 - 112,548 = 325,452

325,452 more meteors fell during the Perseid meteor shower

Answer:

For Leonid meteor shower: So one meteor fall at 4.67 minutes interval Thus, in a year, we will have : 1 meteor - 4.67 minutes. x meteors - 525600 minutes

Step-by-step explanation:

Other Questions
a 11%b 81.7%c 18.3%d 22.4% Examine the diagram of the food web described in the passage. Using arrows, how would you label the direction of energy flow through this web?A:Starting at the edges and and flowing toward the shrimp. B: Starting at shrimp and flowing outward. C: Starting at the plankton and flowing upward.D: Starting at the birds and flowing downward Help pls its urgent XD FREE 70 POINTS By visual inspection, determine the best-fitting regression model for thescatterplot. the life cycle of a white wagtail Following are financial statement numbers and ratios for CVS Health Corporation for the year ended December 31, 2016. 2016 Total revenue (in millions) $177,526 Net operating profit margin (NOPM) 3.6% Net operating asset turnover (NOAT) 2.91 If we anticipate a 5% sales growth in 2017, what is the companys projected net operating profit after tax (NOPAT) for 2017? Select one: A. $61,533 million B. $ 6,710 million C. $ 6,391 million D. $64,499 million E. None of the above Question 10 of 202 PointsDuring the 1950s, American culture was often described as one of:OOOOA. conformityB. povertyC. ProgressivismD. Fascism Sam needs to find the circumference of a circle with a diameter of 24 inches. He uses a calculator to find the circumference. Which answer is reasonable?A. 72.013678 inB. 75.398223 inC. 80.332161 inD. 85.335372 in 11. H&H Bagels sells bagels in packages of six bagels. In April 2020, H&H sold 15,000 packages with a unit price of $8.80 each. H&H had $45,895 of fixed costs and calculated its breakeven volume at 6,850 packages for the month of April. What were H&Hs variable costs per unit and how much did H&H incur in total variable costs in April? A. $6.70 and $100,500 B. $2.10 and $14,385 C. $2.10 and $31,500 D. $6.70 and $45,895 All prokaryotes belong to one of two domains:_____or_______ What role does blood play before cellular respiration can occur Once upon a time in a land far away, a lonely troll lived under a bridge. He was feared by the nearby townspeople , and through the years he learned to accept his quiet life. Although his life was not exciting, he survived as best he could. One day, a village boy ran into the troll. At first , the boy was afraid , but he learned the troll was quite gentle and befriended him . Eventually , the boy convinced the other villagers that the troll meant no harm and the troll was not lonely anymore . By ending the story this way, what impact is the author most clearly trying to have on the reader ? O A. The author wants the reader to understand the importance of fitting in O B. The author wants the reader to understand that appearances can be deceiving O The author wants to demonstrate how mean -spirited the townspeople are. O D. The author wants to show that the troll is a brave and determined individual The function below takes a string argument sentence. Complete the function to return the second word of the sentence. You can assume that the words of the sentence are separated by whitespace. If the sentence contains less than two words, return None. If the last character of the word you are returning is a comma, semi-colon, period, exclamation point, or question mark, remove that last character. The perimeter ofthe rectangular playground shownbelow is 160 feet. What is the area of theplayground? (5x-2)+(3x+4)+90=180 find x Question 25 ptsOrwell uses Squealer the pig to advance his use of rhetoric in his book Animal Farm. At one point there is a significant shortage of food for many of the farm animals. Squealer respondsby reciting statistics to the animals, telling them that even though things are tough for the animals running the farm, things are better than when farmer Jones was in charge Whichanswer shows how rhetoric is used to "disregard' the concerns the animals have for food shortages?Squealer's rhetoric is mostly directed at criticizing Napolean.o Squealer states a "readjustment in food rationing will solve the problem.Squealer states fact, things are better than when farmer Jones ran the farm.Squealer appeals to the other animals by telling them nothing can be done about the food shortage except to deal with it without complaining. The rule at Anna's house is that if she eats allof her vegetables and does all of her choreseach day, she earns 2 hours of internet timewhich she can save. Anna started her weekwith 3 hours saved. If she eats all of hervegetables and does all of her chores eachday for 4 days straight, how many hours doesshe have after the 4 days if she uses 6 hoursof her internet time?Which of the following sets of equationscorrectly represents this situation? what is -9 = 1 4b - 6 In Georgia, who is MOST responsible for making the laws of the state?A) the governorB)the General AssemblyC)the State Supreme CourtD)the State House of Representatives Pablo drove 23.1 miles to his aunts house, then drove 19.24 miles to his friends house. Which estimate can Pablo use to determine the distance he drove altogether? Steam Workshop Downloader