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7 months ago

Mathematics

High School

Using proportions, it is found that 420 students in the school would be expected to say their favorite class is Reading or Math.

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, out of 90 students, 20 + 40 = 60 students prefer reading or math. How many do out of 630? Thus, the rule of three is given by:

60 prefer reading of math - 90 students.

n prefer reading of math - 630 students.

Applying cross multiplication:

90n = 630 x 60

n = 630 x 60/90

n = 7 x 60

n = 420

420 students in the school would be expected to say their favorite class is Reading or Math.

More can be learned about proportions at https://brainacademy.pro/question/24372153

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Using

proportions, it is found that420 studentsin the school would be expected to say their favorite class is Reading or Math.## What is a proportion?

A proportion is a

fractionof a total amount, and the measures are related using arule of three.In this problem, out of 90 students, 20 + 40 = 60 students prefer reading or math. How many do out of 630? Thus, the

rule of threeis given by:60 prefer reading of math - 90 students.

n prefer reading of math - 630 students.

Applying

cross multiplication:90n = 630 x 60

n = 630 x 60/90

n = 7 x 60

n = 420

420 studentsin the school would be expected to say their favorite class is Reading or Math.More can be learned about

proportionsat https://brainacademy.pro/question/24372153