Question

Raymond spends 1/10 of his vacation budget on a car rental. Write an expression for how much he has to spend on the rest of his vacation. If he budgets $650 for the vacation, how much will he have left to spend?

Answer 1

He spent $65 of his total $650 leaving him with $585. 
650/10=65
650-65=585
or (650/10)-65=585
the / is the division symbol. 

Answer 2

If he spends 1/10 of his vacation budget on a car rental, then he has 9/10 of his vacation money to spend on the rest of the vacation

9/10(650) = 5850/10 = 585 on rest of vacation
or u can do it this way as well...

650 - 1/10(650) =
650 - 650/10 = 650 - 65 = 585 left to spend on his vacation