The cost of a pair of pants at a certain store is 130% of the cost of a pair of shorts. A pair of shorts costs $15. What is the cost of 3 pairs of pants

Be,

x = Price of pants

So the shorts are $15

$15 ---> 100%

 x > 130%

We multiply by cross

15 * 130 = x * 100

1950 = 100x

1950/100 = x

19.5 = x

The price of a pair of pants is $19.5.

How much does 3 pair of pants cost?

Applying again simple rule of 3:

1 pants ---> $19.5

3 pants ---> x

We multiply by cross

1 * x = 3 * 19.5

x = 58.5

The answer to your simple rule of 3 math homework is: The cost of 3 pairs of pants is $58.5.

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