Marc ordered a rug. He gave a deposit 30% of the cost and will pay the rest when the rug is delivered. If the deposit was $75, how much more does Marc owe? Explain how you found your answer.

Answer 1

Let's begin by finding out the cost of the rug if Marc gave a deposit of 30% of the cost:
30% = 0.30
x = cost of the rug
(0.30)(x) = 75
0.3x = 75
x = 75/0.3
x = $250 (cost of the rug)

So if Marc put down a $75 deposit and the cost of the rug is $250 then the amount he still owes is the difference between these two amounts:
Amount Owed = $250 - $75
Amount Owed = $175

Answer 2

0.3x = 75
x = 250

250 - 75 = $______