Question

. There are 2 boys for every 3 girls in Mrs. Sorrentino's class. If there are 30 students in

the class, what percentage are boys?

(Please show how to solve this question , step by step!)

Answer 1

40% simplify the fraction then divide (boys/total) then multiply by 100

Step-by-step explanation: 2+3 = 5 is the distributer then : 30/5 = 6 then if 2 are boys 2 x 6 = 12 is the amount of boys 12/30 = 2/5 simplified and then x 100 to fraction's to find percentage 2/5 x 100 = 40%

Answer 2

40% are boys

Explanation:

sum the parts of the ratio, 2 + 3 = 5 parts

Divide number in class by 5 to find value of one part of ratio

30 ÷ 5 = 6 ← value of 1 part of the ratio, then

2 parts = 2 × 6 = 12 ← number of boys in class

percentage =
`(boys)/(total)` × 100%

=
`(12)/(30)` × 100%

= 0.4 × 100% = 40%