The costs of two different shelf stereo systems are decreased by $10. the original costs were $90 and $60, respectively. without calculating, which had a greater percent of decrease? explain.

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

are ya tryin to ask something or is this a statement