A summer carnival charges $2 admission fee and $0.50 for each ride. If Tamara has $10 to spend. How many rides can she go?

16

Step-by-step explanation:

Start with $10.00.

Subtract the admission fee of $2.00.

So, she now has $8.00 to spend on rides.

Divide $8.00 by $.50 to determine the number of rides she can ride.

16 rides

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