TOPIC: Rule of 3 simple
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.
