A store is selling Gatorades for $9 for 15 bottles. How much will it cost if you want to buy 35 Gatorades for your entire class?

$21

Step-by-step explanation:

Use a proportion.

$9 is to 15 bottles as $x is to 35 bottles.

9/15 = x/35

3/5 = x/35

21/35 = x/35

x = 21

$21

$21.00

Step-by-step explanation:

Divide $9 by 15.

The answer is $0.6 for 1 Gatorade.

Multiply $0.6 by 35.

$21.00 for 35 Gatorades.

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