Question

An electronics store is having a sale on new sound systems. If a $625.00 model is on sale for 35% off, what is the actual cost of the sound system?

Answer 1

35% off means 35% of the original price, $625.00, will be subtracted from that original price. 35% is equal to 0.35.

$625.00 - $625.00(0.35) = $625.00 - $218.75 = $406.25

Answer 2

The actual cost of the sound system is $961.54.

Explanation:

This question can be solved using a rule of three.

$625.00 model is on sale for 35% off

This means that $625 is 100-35 = 65% of the original price. How much is 100%?

x - 1

625 - 0.65

0.65x = 625

x = 625/0.65

x = $961.54.

The actual cost of the sound system is $961.54.