The value of Maggie's car decreased by 15% since last year, when she bought it. If the car is now worth $21,000.00, how much was the car worth when she bought it?

car worth when she bought it is $24705.88

Explanation:

given data

value of car decreased = 15%

car now worth = $21,000.00

solution

we consider here car worth when she bought it = x

value of car decreased 15 % it mean

(100 - 15%) price 85% = $21,000.00 ... 1

when car price 100% = x ... 2

so from equation 1 and 2 we get

x * 85 = 100 * $21,000.00

solve it we get

x = 24705.88

so car worth when she bought it is $24705.88