Shya works part-time at a gift-wrapping. the store sells wrapping paper rolls and package of wrapping rolls. there are a total of 125 rolls and package. each roll costs $3.50 and each package costs $2.25. the total of all of the rolls and package is $347.50. how many rolls of wrapping paper are there?

Question

Mathematics

Baker

14 June, 04:40

Shya works part-time at a gift-wrapping. the store sells wrapping paper rolls and package of wrapping rolls. there are a total of 125 rolls and package. each roll costs $3.50 and each package costs $2.25. the total of all of the rolls and package is $347.50. how many rolls of wrapping paper are there?

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Beckham Maddox · Answer 1

R + p = 125 ... p = 125 - r

3.5r + 2.25p = 347.50

3.5r + 2.25 (125 - r) = 347.50

3.5r + 281.25 - 2.25r = 347.50

3.5r - 2.25r = 347.50 - 281.25

1.25r = 66.25

r = 66.25 / 1.25

r = 53 < = = there are 53 rolls of wrapping paper (r)