Problema Solution
joe sold 2 rolls of plain paper and 8 rolls of holiday paper for a total of $88. rob sold 10 rolls of plain paper and 9 rolls of holiday paper for a total of $161. what is the cost of one roll of plain paper and one roll of holiday paper?
Answer provided by our tutors
Let
x = the cost of one roll plain paper
y = the cost of one roll holiday paper
2x + 8y = 88
10x + 9y = 161
.......
click here to see the system of equations solved for x and y
........
x = $8
y = $9
The cost of a roll plain paper is $8.
The cost of roll holiday paper is $9.