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8090 [49]
3 years ago
7

Solve the problem.

Mathematics
1 answer:
zmey [24]3 years ago
6 0

Answer:

the percent of increase is 24%

Step-by-step explanation:

The percent of increase in general could be calculate as:

\frac{Vf - Vi}{Vi} *100

where Vf is final value and Vi is initial value.

From the question we know that Vi is equal to 25 and Vf is equal to 31. Replacing this values on the equation we get:

\frac{31-25}{25} *100=24%

That's mean that at second attempt the percent of increase is 24%, taking into account that at the first attempt a student get 25 questions correct.

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A boutique prices merchandise by adding 80% to its cost. It later decreases by 25% the price of items that do not sell quickly
Darya [45]
A. Write a function f(x) to represent the price after the 80% markup. 
<span>b. Write a function g(x) to represent the price after the 25% markdown. </span>
<span>c. Use a composition function to find the price of an item after both price adjustments that originally costs the boutique $150. </span>
<span>d. Does the order in which the adjustments are applied make a difference? Explain. 
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answers 

 <span>a) f(x) = 1.8x 

b) f(x) = 0.75(1.8x) 

c) f(150) = 0.75(1.8(150) = $202.50 

d) No, it doesn't matter. The result is the same.
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3 years ago
6 less than the sum of x and y
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Answer: (x+y)-6

Step-by-step explanation:

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6 0
2 years ago
ASAP What percentage of total expenses is spent on housing? (round to nearest whole percent)
olga nikolaevna [1]
23.69% or rounded to 24%

5 0
2 years ago
Read 2 more answers
The top row of seats behind home plate at Cincinnati’s Great American Ball Park is 90 ft above the level of the playing field. T
Serggg [28]

Using the slope concept, it is found that the base of the left field wall is 361 feet from a point on level ground directly below the top row.

<h3>What is a slope?</h3>
  • The slope is given by the <u>vertical change divided by the horizontal change.</u>
  • It's also the tangent of the angle of depression.

In this problem:

  • The vertical change is of 90 ft.
  • The horizontal change is of x.
  • The angle of depression is of 14º.

Hence:

\tan{14^{\circ}} = \frac{90}{x}

0.249328 = \frac{90}{x}

0.249328x = 90

x = \frac{90}{0.249328}

x = 361

Hence, the base of the left field wall is 361 feet from a point on level ground directly below the top row.

You can learn more about the slope concept at brainly.com/question/18090623

4 0
2 years ago
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