+52 Sally is buying new school supplies. She used a 15% off coupon on a set of markers that was originally $3.00. She also bought some paper that was 20% off. In total, Sally spent $5.35 after using her coupons. How much was the original price of the paper?
$3 x 0.85 = $2.55 - cost of markers.
Let the original price of paper =P
$2.55 + 0.80P = $5.35
0.80P = $5.35 - $2.55
0.80P =$2.80
P = $2.80 / 0.80
P = $3.50 - Original price of paper.
+129852 Sally is buying new school supplies. She used a 15% off coupon on a set of markers that was originally $3.00. She also bought some paper that was 20% off. In total, Sally spent $5.35 after using her coupons. How much was the original price of the paper?
Price she paid for the markers with coupon = 3.00 x .85 = $2.55
Price of paper = P
Price of paper with coupon = .80P
So
2.55 + .80P = 5.35 subtract 2.55 from both sides
.80P = 2.80 divide both sides by .80
P = 2.80 / .80 = $3.50 = original price of the paper
