Mathematics High School

The price of a bracelet increase from $170 to $200 A Mother's Day what is the percent of increase in the price rounded to the nearest percent

Answers

Answer 1
200-170=30
The percentage of increase:
(30/170)*100=17.6471%

Related Questions

a family went on a vacation and used 5.4 gallons of gasoline to travel 150 miles. how many total gallons of gasoline will they need to travel 200 more miles?

Answers

Answer is 7.2 gallons for 200 miles 

Solve 9x-y=45, solve for y

Answers

9x - y = 45....subtract 9x from both sides
-y = -9x + 45 ...multiply both sides by -1 to make y positive
y = 9x - 45 <==
Answer:  " y =  9x - 45 " .
_________________________
Explanation:
_________________________
Given:  9x - y = 45 ;

Method 1)
____________________________________________
Multiply the entire equation (both sides) by "-1" ; 

-1* {9x - y = 45} ;

to get:  -9x + y = -45 ;

↔ y + (-9x) = -45 ;

→ y - 9x = -45 ;

Add "9x" to each side of the equation ; to isolate "y" one side of the equation; and to solve for "y" ;

  y - 9x + 9x = -45 + 9x ;

y = -45 + 9x ;

→ y = 9x + (-45) ;

→ y = 9x - 45 .
__________________________________________________
Method 2) 
__________________________________________________
Given:  9x - y = 45 ; Solve for y ;

Add "y" to each side of the equation; and Subtract "45" from each side of the equation:

9x - y + y - 45 = 45 + y - 45 ;

to get:  9x - 45 = y ;

↔ y = 9x - 45 .
________________________________

Simplify the expression, if possible. (if the expression cannot be simplified, enter the given expression.) (k − 5)13 (k − 5)

Answers

2 ( k-5) 13 you don't need two k-5 you can simplify it so you just know to do it twice

May I acquire some help on this homework as it is due tomorrow.

Answers

Hello,

1)
[tex]f(x)=2x^3+4x-9=0\\\\ 2x^3+4x-9=0\\\\ x^3=9-4x\\\\ x= \sqrt[3]{9-4x} \\\\ x_{n+1}=\sqrt[3]{9-4x_n}\\\\ x_{n+1}=1,25698196\\\\ [/tex]

2) 3) see file jointed

the angles formed by two perpendicular lines have a measure of _______.

A.45°
B.90°
C.135°
D.180°

thank in advance!! ☺

Answers

the answer is 90 degrees. SO it would be B
I think it is A because it makes the most sence

ALGEBRAAA

1. What is the average rate of change? How do you find it?
2. Whats the difference between recursive and explicit formulas?

Answers

1. The average rate of change is the slope of a line to find it divide the vertical change by the horizontal change


2. recursive is a formula to calculate the next term, depending on what the previous term was

 Explicit is a formula to calculate any term depending on the term number

One 10-ounce soft drink contains about 8 teaspoons of sugar. How much sugar would be in three 10-ounce drinks ?

Answers

24 teaspoons?

since 1 10-ounce is 8 teaspoon

8 x 3 = 24

4x-8y=24 find the x-intercept and y- intercept on the graph

Answers

the x intercept is the value of x when y=0
the y intercept is the value of y when x=0
when y=0: 4x-0=24 => x=4
when x=0: 0-8y=24 => y=-3
so the x intercept is 4, and the y intercept is -3

4x-8y=24
move variables to the right side and change its sign 
4x=24+8y
divide both sides by 4 
x=6+2y 


4x-8y=24
move variable to the right and change the sign 
-8y=24-4x
divide both sides by -8
y=-3+1/2x

using exponents, what is the simplified form of the expression 2^4*2^7?

Answers

Final answer:

To simplify 2^4\*2^7, you add the exponents because the bases are the same, resulting in 2^11 which equals 2048.

Explanation:

When simplifying the expression 2^4\*2^7, we use the property of exponents that states when multiplying two exponential terms with the same base, you add the exponents. So, the simplified form of the expression would be 2^(4+7) which is 2^11. Since we are adding the exponents, this process is known as the sum of exponents and is a fundamental concept in the squaring of exponentials.

To calculate 2^11, you would multiply 2 by itself 11 times, but for the sake of simplicity, the answer is 2048.

A certain mutual fund has net assets of $1,359,600. One share of this fund has a net asset value of $11.33. How many shares make up the fund?

Answers

You would have to divide $1,359,600 by $11.33 which comes out to 120,000
So the answer is 120,000 shares

Answer:

B

Step-by-step explanation:

solving with systems of equations using elimination! please help me. thank u!

Answers

To cross out a variable (in this case, x) we can add both equations together to get -5y=10. Dividing both sides by -5, we get y=-2. Next, plugging it into -3y+5x=26, we get 6+5x=26. Subtracting 6 from both sides, we get 5x=20. Next, we can divide both sides by 5 to get x=4

dakota runs a half marathon every 6 weeks. madison runs a half a marathon every 15 weeks. how many weeks untill they will run together?

Answers

30 weeks they would both run30 miles
Final answer:

To determine when Dakota and Madison will run a half marathon on the same week, we calculate the least common multiple of their running intervals, which is 60 weeks.

Explanation:

The question is to find out how many weeks will pass until Dakota and Madison will run a half marathon on the same week.

We need to find the least common multiple (LCM) of their running intervals, which are 6 weeks for Dakota and 15 weeks for Madison.

To find the LCM, you can list the multiples of each number until you find the smallest number that appears in both lists.

Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, ...Multiples of 15: 15, 30, 45, 60, ...

Here, we see that the smallest common multiple is 60 weeks.

Therefore, Dakota and Madison will run a half marathon together in 60 weeks.

30 POINTS!!

Find the measure of angle B in isosceles triangle ABC.

Answers

C. 65 degrees.

Triangles must equal 180 degrees. The given 50 means the rest of the triangle is equal to 130. I believe because of the Side-Angle-Side theorem of triangles (if my knowledge of proofs from 3 years ago is still with me), the two remaining angles are equal to each other. Let's call them X. 2x = 130. Divide both sides by 2. 130/2 = 65. So x=65

3 angles inside a triangle = 180 degrees

 since the 2 sides are equal

 angle B  and C are the same

180 - 50 = 130 degrees

130 / 2 =65

 Angle B is 65 degrees

Let f (x) = 2x - 1, g(x) = 3x, and h(x) = x2 + 1. Compute the following: f (h(x)) and. g (f (x))

Answers

To get f(h(x)), we simply plug h(x) into the x value(s) of f(x), resulting in 
2(x²+1)-1=2x²+2-1=2x²+1

For g(f(x)), we plug f(x) into the x value(s) of g(x), resulting in 
3(2x-1)=6x-3

what are the solutions to the quadratic equation of 2x^2-16x+32=0 show work?

Answers

2x^2-16x+32=0
2(x^2 - 8x + 16) = 0
2(x - 4)^2 = 0 
x - 4 = 0; x = 4

answer
x = 4 is the solution

Answer:

The Answer is 4

Step-by-step explanation:

2x² - 16x + 32 = 0

we would multiply 2x² and 32

= 64x²

then factorise 64x² such that the sum of the two nos = -16 AND the product of the nos = 64

the only value that satisfies this condition is -8 (-8 + -8 = -16, and -8 * -8 = 64)

so our equation becomes

0 = 2x² - 8x -8x + 32

0 = (2x² - 8x) (-8x +32)

we bring out common terms i.e. factorise it

2x(x - 4) -8(x - 4)

0 = (2x - 8) (x - 4)

0 = 2x - 8 or 0 = x - 4

8 = 2x or 4 = x

x = 8/2 or 4

x = 4 or 4

x = 4

hope it was clear

a text book costs $108.00. if mathew paid a total of $113.94 for the book and sales tax, what rate of sales tax was he charged?

Answers

Okay. So to find the amount of sales tax, we have to first subtract the text book cost from the total. 113.94 - 108 = 5.94. That’s $5.94 in taxes. To find the percentage, we have to do the amount in taxes divided by the cost of the item, in this case, the textbook. 5.94 / 108 is 0.055. Multiply 0.055 by 100 in order to get the percentage. When you do that, you get 5.5%. Matthew was charged 5.5% in sales tax.

Talia gave her hairdresser a 20 percent tip, which amounted to $7. What was the price of the service before the tip?

Answers

I don't know if I did it right but here's my guess. I think you multiply 7 by 20% and that gives you 1.40 as a result. Compared to the other method I used (division), I'm pretty sure I'm right since the other result was 35. Doesn't make sense if the end amount was $7.
Answer:

The price of the service that was charged before the tip was:

                            $ 35

Step-by-step explanation:

Let the price of the service be $ x.

Now it is given that:

Talia gave her hairdresser a 20 percent tip, which amounted to $7.

This means that the 20% of total service charge=7

i.e.  20% ×x =7

i.e. 0.20×x=7

i.e. x=7/0.20

i.e. x=35

Hence, the price of the service that was paid before the tip is: $ 35

Anna is 4ft 9in tall. Express Anna's height in feet only by using a mixed number. If necessary, simplifyvthe fraction part of the mixed number

Answers

So we know that there are 12 inches in a foot. With this information we can do this:[tex]4 \frac{9}{12} [/tex] But if you look you can see that the fraction is not simplified. How can we simplify it? Well, what is the Greatest Common Factor of 9 and 12? Well, the answer is 3! So divide 9 and 12 by three! SO the answer would be: [tex]4 \frac{3}{4}[/tex] I hope this helps!

which of the following is the equation of a line perpendicular to the line y= -3/2x+4 and passes through the points (3,9)

Answers

 line y= -3/2x+4 slope = -3/2
perpendicular  lines, slope is opposite and reciprocal
so slope of perpendicular  line = 2/3
passes through the points (3,9)
y = mx + b
9 = 2/3(3) + b
9 = 2 + b
b = 7

equation of perpendicular line
y = 2/3x + 7
3y = 2x + 21
-2x + 3y = 21

Answer:

[tex]2x-3y+21=0[/tex]

Step-by-step explanation:

We are given that an equation

[tex]y=-\frac{3}{2}x+4[/tex]

We have to find an equation of line which is perpendicular to given line and passing through the point (3,9).

We know that when two lines of slope [tex]m_1\;and\;m_2[/tex] are perpendicular then

[tex]m_1=-\frac{1}{m_2}[/tex]

By comparing with

[tex]y=mx+b[/tex]

Where m=Slope of line

Slope of given line=[tex]=m_1=\frac{-3}{2}[/tex]

Slope of the line=[tex]-\frac{1}{m_1}=-\frac{1}{\frac{-3}{2}}=\frac{2}{3}[/tex]

Slope of the line=[tex]\frac{2}{3}[/tex]

The equation of line passing through the point (3,9) is given by

[tex]y-y_0=m(x-x_0)[/tex]

Substitute the values

The equation of line which passing through the point (3,9) is given by

[tex]y-9=\frac{2}{3}(x-3)[/tex]

[tex]3y-27=2(x-3)[/tex]

[tex]3y-27=2x-6[/tex]

[tex]3y=2x-6+27[/tex]

[tex]2x-3y+21=0[/tex]

the table shows the volume of gasoline in a gas tank at different times. Find th e rate of change for each time interval. During which time interval did the volume decrease at the greatest rate?

Answers

Final answer:

To find the rate of change for each time interval, calculate the difference in volume for each interval and divide it by the difference in time. Compare the rates of change to determine the time interval with the lowest rate of change.

Explanation:

To find the rate of change for each time interval, we need to calculate the difference in volume for each interval and divide it by the difference in time. Let's assume the time intervals are 12-18 hours, 18-24 hours, and 12-24 hours. The rate of change for each interval can be calculated as follows:

Rate of change for 12-18 hours = (Volume at 18 hours - Volume at 12 hours) / (18 hours - 12 hours)

Rate of change for 18-24 hours = (Volume at 24 hours - Volume at 18 hours) / (24 hours - 18 hours)

Rate of change for 12-24 hours = (Volume at 24 hours - Volume at 12 hours) / (24 hours - 12 hours)

The time interval during which the volume decreased at the greatest rate will be the interval with the lowest rate of change. Compare the rates of change calculated for each interval to find the time interval with the lowest rate of change.

Learn more about Rate of change here:

https://brainly.com/question/31226174

#SPJ12

The expression $1.25p + $3.50 can be used to calculate the total charge for printing p pages at a business service store. How much would it cost to print 8 pages

Answers

Since one page cost $1.25 to print take the cost of per page $1.25 times the number of pages to be printed, in this case eight. $1.25 x 8 = $10.00
Remember there is still a $3.50 added to the cost of the pages printed; thus you have $10.00 + $3.50 = $13.50 which is the total charge.

Can someone please help?
thanks :)

Answers

This is one way to solve it.

(6-3)^2

breakdown: (6-3) (6-3)

Now using the distributive property you can further solve this problem. This means you multiply everything by each other.

6*6, 6*-3, -3*6, -3*-3

36 -18 -18 +9

Now solve what's above.
You should find 9 as your final answer.

Please vote my answer brainliest. thanks!


What number produces a rational number when added 1/5

Answers

It is because benchmark fraction 1/5 = .20

Suppose that the time it takes to do a job is inversely proportional to the number of workers. that is, the more workers on the job the less time required to complete the job. if it takes 2 workers 8 days to finish a job, how long will it take 8 workers?

Answers

i think it would be 2 days. you would get it done 4 times faster, so 8/4 is 2

The perimeter of the isosceles ΔABC with the base
BC is equal to 40 cm. Perimeter of the equilateral ΔBCD is 45 cm. Find BC and AB.

Answers

ΔBCD is equilateral, so

|BC| = |CD| = |DA|

and

[tex]P=|BC|+|CD|+|DA|\\\\45=|BC|+|BC|+|BC|\\\\45=3\cdot|BC|\quad|:3\\\\|BC|=45:3\\\\\boxed{|BC|=15\text{ cm}}[/tex]

ΔABC is isosceles and

|AB| = |CA| (legs)

[tex]P=|AB|+|BC|+|CA|\\\\P=|AB|+|BC|+|AB|\\\\40=2\cdot|AB|+15\\\\40-15=2\cdot|AB|\\\\25=2\cdot|AB|\quad|:2\\\\\boxed{|AB|=12.5\text{ cm}}[/tex]

The length of BC is 15 cm and the length of AB is 12.5 cm.

The given parameters;

perimeter of isosceles ΔABC = 40 cmbase of the isosceles triangle = BCPerimeter of the equilateral ΔBCD =  45 cm

An equilateral triangle has three equal sides and the length of each side is calculated as;

[tex]|BC| = |BD| = |CD| = \frac{45}{3} = 15 \ cm[/tex]

Thus, the length of BC is 15 cm.

An isosceles triangle has two equal sides and a third side of different length. This third side is usually the base of the triangle.

The base of the isosceles triangle = BC = 15 cmThe two remaining sides = AB and AC

[tex]|AB| = |AC| =\frac{Perimeter \ - \ |BC|}{2} = \frac{40 - 15}{2} = 12.5 \ cm[/tex]

Thus, the length of AB is 12.5 cm.

Learn more here: https://brainly.com/question/11296804

What is the reciprocal of each mixed number? Drag and drop the answer into the box to match each number.
10 1/3
2 2/3
5 1/3.

Answers

Hi there!! 

First, we are going to find the improper fraction of each mixed number. 

10 1/3 >>>>> 10*3+1=31 31/3

2 2/3 >>>>> 2*3+2=8.      8/3 

5 1/3 >>>>>> 5*3+1 = 16.  16/3 

TO find the reciprocal, we switch the numerator with the denominator. 

31/3 changes to 3/31, 8/3 changes to 3/8, and finally 16/3 changes to 3/16. 


Your answer is: 

3/31
3/8
3/16

Hope this helps! Let me know if you have any questions:)

Answer:

10 1/3 = 3 /31.      2 2/3 = 3/8.          5 1/3 = 3/16.

Step-by-step explanation:

i took the k12 test and got 100 percent hope this helps!!

Graph y-5 = -2/3 (x+9)

Answers

when you put the equation into y=mx+b form, it is:
y=-2/3x-1
not sure how to graph this on here, but I guess I can describe the graph to ya:
~the line intersects the y-axis at -1 and the x intersect at -1.5
~draw your line

In a country where prices are rising quickly, bread that now costs $1.39 will cost 2.4 times as much next year. How much will the bread cost next year

Answers

multiply the current price by the increase

1.39 * 2.4 = $3.34 ( price next year)

Represent real-world situations a rectangular piece of sheet metal is rolled and riveted to form a circular tube that is open at both ends, as shown. the sheet metal has a perimeter of 36 inches. each of the two sides of the rectangle that form the two ends of the tube has a length of x inches, and the tube has a circumference of x - 1 inches because an overlap of 1 inch is needed for the rivets. write a volume function for the tube in terms of x. then, to the nearest tenth, find the value of x that maximizes the volume of the tube. answer

Answers

12.3 Volume function: v(x) = ((18-x)(x-1)^2)/(4pi) Since the perimeter of the piece of sheet metal is 36, the height of the tube created will be 36/2 - x = 18-x. The volume of the tube will be the area of the cross section multiplied by the height. The area of the cross section will be pi r^2 and r will be (x-1)/(2pi). So the volume of the tube is v(x) = (18-x)pi((x-1)/(2pi))^2 v(x) = (18-x)pi((x-1)^2/(4pi^2)) v(x) = ((18-x)(x-1)^2)/(4pi) The maximum volume will happen when the value of the first derivative is zero. So calculate the first derivative: v'(x) = (x-1)(3x - 37) / (4pi) Convert to quadratic equation. (3x^2 - 40x + 37)/(4pi) = 0 3/(4pi)x^2 - (10/pi)x + 37/(4pi) = 0 Now calculate the roots using the quadratic formula with a = 3/(4pi), b = -10/pi, and c = 37/(4pi) The roots occur at x = 1 and x = 12 1/3. There are the points where the slope of the volume equation is zero. The root of 1 happens just as the volume of the tube is 0. So the root of 12 1/3 is the value you want where the volume of the tube is maximized. So the answer to the nearest tenth is 12.3

Ari writes 2 + 4 on the left-hand side of his paper. Then he writes 6 to the right of the expression. Which symbol should Ari write between the two sets of numbers?

A.
+

B.
?

C.
=
Plz help will rate 19 pts

Answers

C. 2+4=6. i believe that's what you're asking. those other answers just dont make sense for real.

The correct symbol that Ari should write between the two sets of numbers is C. =.

When Ari writes "2 + 4" on the left-hand side of his paper and then writes "6" to the right of the expression, he is indicating that the sum of 2 and 4 is 6. The symbol "=" is used to denote equality, meaning that the value on the left side of the equation is the same as the value on the right side. In this case, the sum of 2 and 4 indeed equals 6, so the complete equation should be written as:

[tex]\[ 2 + 4 = 6 \][/tex]

This shows that the operation of adding 2 and 4 results in the number 6, which is a true statement. Therefore, the correct answer to the question is option C, the equals sign "=".

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