Answer:
<u>Jonathan has to pay Faye back US$ 240 </u>
<u>Jonathan has 4 people on his bill and Faye has 6.</u>
Step-by-step explanation:
1. Let's find out the amount of the phone bills, this way:
Total of the two bills = US$ 600
Faye's bill = US$ 120 more than Jonathan's
Jonathan's bill = x
Solving for x, we can use this equation:
x + x + 120 = 600
2x + 120 = 600
2x = 600 - 120
2x = 480
x = 480/2 = 240
<u>Jonathan has to pay Faye back US$ 240 </u>
2. Let's find out the number of people on each bill, this way:
Faye has two people more on her bill than Jonathan
Number of people on Jonathan's bill = x
Number of people on Faye's bill = x + 2
We will use the following equation:
240 * (x + 2) = 360x
240x + 480 = 360x
240x - 360x = -480
-120x = - 480
x = -480/-120
x = 4 ⇒ x + 2 = 6
<u>Jonathan has 4 people on his bill and Faye has 6.</u>
