Question

, write equivalent ratios that represent the situation and solve. 12. Angela pays $120 for 4 piano lessons. How much does she pay for 8 piano lessons?

Answer 1

Answer:

She pays $240 for 8 lessons.

Step-by-step explanation:

We need to set up equivalent ratios so we can cross-multiply and solve for x, the amount Angela pays for 8 lessons. Make sure to have both the costs in the numerator, and the number of lessons in the denominator. If you mix it up, this won't work.

$\frac{120}{4} = \frac{x}{8}$

Cross-multiply:

120*8 = 4x

Solve for x:

960 = 4x

960/4 = x

x = $240