Question

Mei and Scott are selling wrapping paper for school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of holiday wrapping paper. Mei sold 6 rolls of plain wrapping paper and 3 rolls of holiday wrapping paper for a total of $90. Scott sold 1 roll of plain wrapping paper and 4 rolls of holiday wrapping paper for a total of $71. What is the cost of each one roll of plain wrapping paper and one roll of holiday wrapping paper?

Answer 1

Mei: 6P + 3H = 90
Scott: 1P + 4H =71

(p+4H=71) * -6
-6P -24H= -426
6P + 3H= 90
0P + -21H = -336
-21/-21  -336/-21
H= 16 holiday wrapping paper is 16$
1P + 4(16)=71
1P +64 =71
-64 from both sides
p= 7 Plain wrapping paper is 7$

Check your solution
6(7) + 3(16) =90
42 + 48 = 90