A mechanic needs two 3/8" bolts that cost 20 cents each and two nuts that cost 15 cents each. If a discount of 33 1/3% is allowed, what is the cost of the parts? Express the answer to the nearest cent.

Question

Quizplus · Accepted Answer

The total cost without discount is (2 * 0.20) + (2 * 0.15) = 0.40 + 0.30 = 0.70 dollars. A discount of 33 1/3% is equivalent to 1/3, so the discount amount is 0.70 * (1/3) = 0.2333 dollars. The cost after discount is 0.70 - 0.2333 = 0.4667 dollars, which rounds to 47 cents.

A Mechanic Needs Two 3/8" Bolts That Cost 20 Cents