Respuesta :

Answer:

21.6 is the payment amount from mom to Emily

Step-by-step explanation:

Proportion

Payment / unit distance =  total payment/total distance

Givens

  • Payment =0.90
  • Unit distance = 0.75 miles
  • Total payment = x
  • Total distance = 18 miles

Solution

0.9/0.75 = x / 18               Multiply both sides by 18

0.9 * 18/0.75 = x * 18/18   Simplify.

16.2 / 0.75  =  x                 Simply the left

21.60 = x