Marvin is buying a watch from his brother for $130. His brother tells him that he can pay $30 down and the rest in 10 equal installments.

Mathematics · Middle School · Wed Jan 13 2021

Answered on

Let the amount of installments be x

Then, according to question

10x + 30 = 130

10x = 130 - 30

10x = 100

x = 100/10

x = 10

Hence, Marvin will have to pay $10 for 10 installments.