Sam saved 4/7 of his paycheck and spent 2/5 of the remaining money. He was then left with $9. What was the original value of Sam's paycheck?
2 answers
5/2
the amount left was
(1 - 4/7)(1 - 2/5) = 3/7 * 3/5 = 9/35 of the original amount.
So, 9/35 x = 9
x = 35
(1 - 4/7)(1 - 2/5) = 3/7 * 3/5 = 9/35 of the original amount.
So, 9/35 x = 9
x = 35