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3.
The ACT is a college entrance exam taken by high school students. The maximum score that can be
earned is 36. The average score in the United States was
20.9 during the 2005 school year. The average
score for Vermont students was 8.1% higher than the national average. What was the average ACT score
for Vermont students? Round your answer to the nearest tenth.
36.
8.1%
-
x

Respuesta :

Using proportions, it is found that the average ACT score for Vermont students was of 22.6.

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  • Percentage problems can be solved by proportions, using rule of three.
  • The national average was of 20.9, which is 100% = 1.
  • Vermont's average, of x, was 8.1% higher than the national average, so 100% + 8.1% = 108.1% = 1.081.

The rule of three is:

20.9 - 1

x - 1.081

Applying cross multiplication:

[tex]x = 20.9(1.081) = 22.6[/tex]

The average ACT score for Vermont students was of 22.6.

A similar problem is given at https://brainly.com/question/24342347

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