Val buys a computer for $920. if this is 115% of what the store paid for the same computer, how much did the store earn on the sale?

$120 more earned by the store on the sale of same computer to Val.

Step-by-step explanation:

Since we have given that

Original cost of computer Val buys = $920

According to question , if this is 115% of what the store paid for the same computer,

So, the store paid for the same computer will be

So,  the store earned on the sale is given by

Hence, $120 more earned by the store on the sale of same computer to Val.

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step-by-step explanation:

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