What is the answer to this equation 42 =7(z-3)

Answers

Answer 1

The answer is 42= 7(9-3), z would be 9

Answer 2

42= 7(z-3)
divide both sides by 7 to get rid of it:
6=z-3
add 3 on both sides
6+3=z

z=9

Related Questions

find the slope of the line that contains the following points A : [ 17 , -12 ] and [ 17 , 8 ] and B [ 6 , -2 ] and [ -3 , 1 ]

Answers

1/9 because i you plug in two of the points into y2 -y1 over x2 -x1 thats what you get.

How can you tell the difference between a terminating decimal and a repeating decimal?

Answers

A terminating decimal is a decimal that ends:
1.5

A repeating decimal is a decimal that does not end:
1.5555555...

A repeating decimal goes on forever and a terminating decimal doesn’t

Identify the coordinates of P(–5, 7) after a rotation of 180° about the origin. a. P’ = (5, 7) c. P’ = (5, –7) b. P’ = (–5, –7) d. P’ = (7, –5)

Answers

It's
c. P’ = (5, –7)
(both coordinate signs get flipped)

Suppose two mice live in a barn. The number of mice quadruples every three months. The function f(x)=2•4^x models this situation. How many mice will be in the barn after two years?

Answers

So first we have to see how many 3 months are in 2 years. There are 8 in 2 years, we do 2x4=8, and then 8x4=32, then 32x4=128, then 128x4=512, then 512x4=2048, then 2048x4=8192, then 8192x4=32768, then 32768x4=131072. So our answer is 131,072.

Whitney earns $180.50 for 25 hours of work how much does Whitney earn per hour

Answers

If we do $180.50 / 25, we get $7.22. This is how we find a unit rate. With this $7.22, it represents 1 per hour, (aka the starting rate), so Whitney earns $7.22 an hour.

The answer is $7.22 per hour

Mr. Itol's assistant takes twice as long to complete a computer task as Mr. Itol. If it takes both experts 6 hours to complete the task, how long will it take each of them to do the job alone? PLEASE HELP

Answers

His assistant would have to take 4 hour 30 minutes while Mr. Itol would take 1 hour 30 minutes.

Answer: Hence, Mr. Itol takes 9 hours, and his assistant takes 18 hours alone.

Step-by-step explanation:

Let the number of hours Mr. Itol takes be 'x'.

Let the number of hours Mr. Itol's assistant takes be '2x'.

Total number of hours both experts take = 6 hours

According to question, we get that

[tex]\dfrac{1}{x}+\dfrac{1}{2x}=\dfrac{1}{6}\\\\\dfrac{2+1}{2x}=\dfrac{1}{6}\\\\\dfrac{3}{2x}=\dfrac{1}{6}\\\\18=2x\\\\x=\dfrac{18}{2}\\\\x=9[/tex]

Number of hours taken by him = x = 9 hours

Number of hours taken by his assistant = 2x = [tex]2\times 9=18\ hours[/tex]

Hence, Mr. Itol takes 9 hours, and his assistant takes 18 hours alone.

The marine life store would like to set up fish tanks that contain equal number of angel fish sword-tails, and guppies. what is the greatest number of tanks that can be set up if the store had 12 angel fish, 24 sword-tails and 30 guppies?

Answers

I would think six, because you could put 2 angel fish, 4 sword tails and 5 guppies in each.

A decimal rounded to the nearest hundredth is 6.32 the decimal is greater than 6.32 what could this decimal be?

Answers

One anwser to this problem is 6.323. This is an anwser because the number in the thousands place is less than 5 therefore it would round down to 6.32 and is still greater than 6.32.

It could be any of the following:
6.323 OR 6.324

I need to simplify this... (4a^3+7a^2b+6b^3) + (a^3+2a^2b+4b^3)

Answers

(4a³ + 7a²b + 6b³) + (a³ + 2a²b + 4b³)

Get rid of the parenthesis.

4a³ + 7a²b + 6b³ + a³ + 2a²b + 4b²

Add like terms.

(4a³ + a³) + (7a²b + 2a²b) + (6b² + 4b²)

Simplify.

5a³ + 9a²b + 10b²

~Hope I helped!~

Last year Travelon Airline carried 320000 passengers. This year the number of passengers increased by 1.38%. How many passengers did Travelon carry this year?

Answers

(320000/100)*1.38 = 4416
320000+4416 = 324416

do you have to do some math to answer both of these or do you just answer yes ✅ or no

Answers

Q is not the midpoint of PR and G is the midpoint of FH.

Determine if Q is the midpoint of PR:

First, we set up the equation:

PQ + QR = PR

5(x + 2) + 8x - 3 = 72

5x + 10 + 8x - 3 = 72

13x+ 7 = 72

Solving for x :

13x = 65

x = 5

Check if PQ and QR are equal when x = 5:

PQ = 5(x + 2) = 5(5 + 2) = 5 × 7 = 35

QR = 8x - 3 = 8 × 5 - 3 = 40 - 3 = 37

Since PQ ≠ QR , Q is not the midpoint of PR.

Determine if G is the midpoint of FH:

First, we set up the equation:

FG + GH = FH

4x + 24 = 7x + 6

24 - 6 = 7x - 4x

18 = 3x

x = 6

Check if FG and GH are equal when x = 6 :

FG = 4x = 4 × 6 = 24

GH = 24

Since FG = GH, G is the midpoint of FH.

PLZZZZZ HELP ME! :) XDDD

Answers

In order to figure out what the answer is you would have to divide the number of feet it fell by the time. If you do 35.75 divided by 3.25 it would be 11.
So the answer most likely would be 11
Please correct me if I am wrong
Have a great day!

Please help!!! I don’t get any of this can someone please explain what to do and how I can get my answer????

Answers

its just a matter of subbing ur numbers into the formula given
1. d = rt
when r = 144 and t = 18
now we sub
d = 144 * 18
d = 2592 <==
2. d = rt
when r = 56 and t = 3.5
sub
d = 56 * 3.5
d = 196 <==

3. A = L * W
when L = 2 ft and W = 15 inches....this one u have to convert to inches...2 ft = 24 inches...so L = 24 and W = 15
A = 24 * 15
A = 360 in^2 <==

4. A = L * W
L = 3m and W = 32 cm...have to convert to cm.....1 m = 100 cm...so 3 m = 300 cm
A = 300 * 32
A = 9600 cm^2 <==

u basically do the same for all the others....its just a matter of subbing and solving

what are the steps to drawing a triangle when
the angle of D = 110°
the angle of E = 30°
and EF = 5cm

Answers

add all the numbers and subtract it from 180 degrees

Adolfo earned $650 last week.he paid $97.50 in gederal income tax.He paid one third that amount for state income tax and other taxes combined.What was Adolfo's pay after taxes?EXPLAIN how u found your answer.

Answers

650
-97.50
-(1/3)*97.50=32.50
=520

final answer = $520

he earned 650

he paid 97.50 in general income tax

he paid 1/3 that amount for other stuff
1/3(97.50) = 97.50/3 = 32.50

so in total, he paid : 97.50 + 32.50 = 130

leaving him with : 650 - 130 = 520 <=== pay after taxes

What's the answer to this problem
Plz help me
I only need the answer to number 10
plz help me

Answers

-5/4 =-1.25

-14/25 = -0.56

-13/8 = -1.625

Runner D finished 2nd it is the smallest number

Runner B was 5th

What is the absolute value of -200

Answers

The absolute value of -200 is 200

Here is your answer:

|-200|=200 (in absolute value)

When you are doing questions like these remember to look at the negative sign if their a negative sign its a positive if its a positive its still a positive look at it this way negative represents a dirty car the line ( | ) represents a car wash when going through the car wash your car is going to be clean. Clean represents positive but if you go into a car wash with a clean car your going to have a clean car still which means its still a positive.

Look at it this way:
Negative=positive
Positive=Negative

Your answer is 200

Solve for x: one over eight(8x + 15) = 24

Answers

Final answer:

To solve for x in the equation 1/8(8x + 15) = 24, distribute 1/8 to both terms inside the parentheses, simplify, subtract (15/8) from both sides, convert the whole number to a fraction, combine like terms, and calculate the numerator.

Explanation:

To solve for x in the equation 1/8(8x + 15) = 24, we need to isolate x on one side of the equation. Here are the steps:

Distribute the 1/8 to both terms inside the parentheses: (1/8)(8x) + (1/8)(15) = 24Simplify: x + (15/8) = 24Subtract (15/8) from both sides: x = 24 - (15/8)Convert the whole number 24 to a fraction with common denominator 8: x = (192/8) - (15/8)Combine like terms: x = (192 - 15)/8Calculate the numerator: x = 177/8

Therefore, the solution to the equation is x = 177/8 or x = 22.125 (rounded to three decimal places).

Final answer:

To solve for x, multiply both sides of the equation by 8 to eliminate the fraction, then simplify the equation and solve for x by dividing both sides by 8.

Explanation:

To solve for x, we can start by multiplying both sides of the equation by 8 to eliminate the fraction:

1/8(8x + 15) = 24

(8x + 15) = 24 * 8

8x + 15 = 192

Next, we can subtract 15 from both sides of the equation:

8x = 192 - 15

8x = 177

Finally, we divide both sides of the equation by 8 to solve for x:

x = 177/8

x = 22.25

I WILL MARK BRAINLY

Which decimal number is equal to 2/3 ?

0.6

0.66
_
0.6

0.67

What is 3/5 written as a decimal?

0.12

0.3

0.6

1.67

Which decimal number is equal to 7/9 ?

0.7
_
0.7

0.78
_
0.78

Karl bought 312 gallons of milk that cost $2.70 per gallon.

What was the total cost of the milk?

Enter your answer in the box.

Answers

1._
0.6

What is 3/5 written as a decimal?
0.6

Which decimal number is equal to 7/9 ?
_
0.7

Karl bought 312 gallons of milk that cost $2.70 per gallon.

What was the total cost of the milk? 0.083 with a line on the top

Can someone help me with 7 1/2 ÷ 1 9/10 please and thank you

Answers

[tex] \frac{ 7\frac{1}{2} }{1 \frac{9}{10} } = \frac{3.5}{0.9} =3.88888888889[/tex]

Gas is $2.09 per gallon; how much will it cost to get 10 gallons of gas?

Question 2 options:

$20.90

$12.09

$7.91

$4.10

Answers

20.90 is the correct answer

Multiple 10 by $2.09 then that will give you your answer $20.90

The Gonzalez family is taking a cruise that costs e,082.24 for a family of four. How much does it cost per person?

Answers

That would be 082.24 / 4 = e, 20.56

Salutations!

The Gonzalez family is taking a cruise that costs 082.24 for a family of four. How much does it cost per person?

Lets solve this!

To find the cost of 1 person, you need to divide 082.24 by 4. Zero does not have any value so it does not matter if we consider it or not.

Lets form this into statements ---

Cost of family of four = 082.24

Cost of per person = [tex]082.24/4[/tex]

= [tex]20.56[/tex]

To assure your answer, you can multiply 20.56 by 4 which gives you the answer 82.24

Cost of per person is 20.56 or 020.56.

Hope I helped (:

Have a great day!

Clea attends music lessons every 2 weeks, dance class every 3 weeks, and has a dental appointment every 6 weeks. If she attends all three this week, when will she attend all three again

Answers

To find the next week in which all three coincide, look for the lowest common multiple of the numbers 2,3, and 6. Two has multiples of (2,4,6,8,10,12), three has (3,6,9,12,15,18), and 6 has (6,12,18,24). The lowest number that is common to all three values is 6, so Clea will attend all three in the same week 6 weeks from now.

(1) What is the equation, in point-slope form, for a line that goes through (8, −4) and has a slope of negative 5/6 (all fractions are negative.)
A) y + 4 = - 5/6 (x + 8)
B) y + 4 = - 5/6 (x - 8)
C) y - 4 = - 5/6 (x + 8) "I think this is the answer but i am not too sure"
D) y - 4 = - 5/6 (x - 8)

(2) What is the equation of a line, in point-slope form, that passes through (−2, −6) and has a slope of 1/3?
A) y - 2 = 1/3 (x - 6)
B) y + 2 = 1/3 (x + 6)
C) y + 6 = 1/3 (x + 2)
D) y - 6 = 1/3 (x - 2)

(3) What is the equation in point-slope form of the line that passes through the points (7, 5) and (−4, −1) ?
A) y + 1 = 6/7 (x + 4)
B) y + 4 = 11/6 (x + 1)
C) y + 1 = 6/11 (x + 4)
D) y - 1 = 6/11 (x - 4)

(4) What is the equation in point-slope form of a line that passes through the points (7, −8) and (−4, 6) ?

A) y − 6 = − 2/3 (x + 4)
B) y + 6 = − 2/3 (x − 4)
C) y + 6 = − 14/11 (x − 4)
D) y − 6 = − 14/11 (x + 4)

Answers

Formula for point-slope: [tex]y - y1 = m(x-x1) [/tex]
Plug in the values (1): [tex]y + 4 = -\frac{5}{6} (x - 8) [/tex] {Choice B}
Plug in the values (2): [tex]y + 6 = \frac{1}{3}(x+ 2)[/tex] {Choice C}
_______________________

[For (3) and (4) we need to solve for slope]

(3)
First, solve for slope.
Formula for slope: [tex] \frac{y2-y1}{x2-x1} [/tex]
Plug in values: [tex] \frac{-1-5}{-4-7} = - \frac{6}{11} [/tex]
Slope: [tex]- \frac{6}{11} [/tex]
Second, we must plug into point-slope form.
Formula for point-slope: [tex]y - y1 = m(x-x1)[/tex]
Plug in the values: [tex]y + 1 = - \frac{6}{11}(x + 4) [/tex] {Choice C}

(4)
First, solve for slope.
Formula for slope: [tex] \frac{y2-y1}{x2-x1} [/tex]
Plug in values: [tex] \frac{6-(-8)}{-4-7} = - \frac{14}{11} [/tex]
Slope: [tex]- \frac{14}{11} [/tex]
Second, we must plug into point-slope form.
Formula for point-slope: [tex]y - y1 = m(x-x1) [/tex]
Plug in the values: [tex]y - 6 = - \frac{14}{11}(x + 4) [/tex] {Choice D}

Answer:

its y+1=8/9(x+4)

x+2y=23
5x+10y=55
solve please

Answers

X+2y=23
X=-2y +23
Plug this in for x in the second equation

5(-2y + 23) + 10y = 55
-10y + 115 + 10y = 55

The -10y + 10y cancel out, so there is no solution

Hope this helps!

Write the number 45.78 trillion in scientific notation.

Answers

Without scientific notation it would look like 4 000 000 000 000
The decimal place must be moved 12 units to the left to be after a significant figure, thus giving the scientific notation to the power of 12. The significant figure is 4 so you get the equation 4.0⋅1012.

What’s 7 meters equal as cm

Answers

its 700 cm !! hope this helps

It’s 700cmhope you do well

I need help finding the least common multiple for each pair

Answers

It would be 2 because

2 is 3 and for 30 it is 6

one day at lunch , a restaurant served 178 burgers, 63 grilled cheese sandwiches, and 37 salads.
Estimate about how many meals the restaurant served for lunch that day.
A. 80
B. 180
C. 280
D. 160

Answers

178+63+37=278 So if we were ESTIMATING it would be around 280.
I hope that this helps!

Number of meals served by restaurant for the lunch is estimated as option C. 280.

To estimate how many meals the restaurant served for lunch that day, you can add up the number of each item served:

Number of burgers = 178

Number of grilled cheese sandwiches = 63

Number of salads = 37

Now, to get a rough estimate of the total number of meals served, add these quantities together:

Total meals served = 178 (burgers) + 63 (grilled cheese sandwiches) + 37 (salads) = 278

Therefore, the choices provided are close to this estimate is option is C. 280.

learn more about estimate here

brainly.com/question/30870295

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A recipe calls for 12 cups of blueberries to make 7 jars of blueberry jam. What is true about the number of cups of blueberries in each jar?

Answers

12/7 = 1.7 ,there is 1.7 cups of blueberries in every jar

12*7=12/7 which is 1.71428571 which is the answer

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