Nathan had $25 to spend the carnival. he spent 60% of the money on food and drinks. how much money does nathan have left to spend on games.

$15

Step-by-step explanation:

Equation: x/25 = 60/100

Cross Multiply: 25(60) = 100x

Simplify: 1500 = 100x

Divide: 1500/100 = 15

x = 15

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15