if 10% sale and an additional sale of 15% of sale price, what was the the original price if i paid $306.
1
Expert's answer
2012-06-07T07:44:31-0400
if 10% sale and an additional sale of 15% of sale price, what was the the original price if i paid $306.
Let x be the original cost. Then
0.90x
is the amount the student pays (100%-10% = 90%) and
0.85·0.90x
is the sales price (100%-15%=85%). If the sales price = 306, then
0.85·0.90x = 306 0.765x=306 x=$400
So, the original cost was $400. This makes sense because $40 was taken off for the student discount, bringing the sales price to $360 and an additional 15% of 360 = $54, so $360-$54 = $306.
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