Cody's rent is increasing by $51 per month starting next year. That is an increase of 15% from his current monthly rent. Let r represent Cody's current rent. Set up an equation and solve it to find the value of r.

Step-by-step explanation:

Given

Required

Determine the value of r

The value of r can be set up percentage increase formula as follows:

Substitute values in the above equation

Cross Multiply

Convert percentage to decimal

And the value of

Hence, Cody's current rent is $43.35 monthly

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

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