A gift shop uses two sizes of boxes for presents. These boxes have exactly the same shape. The smaller box is 9 in long, and the larger box is 15 in long. If 45 in of wrapping paper is needed to cover the smaller box, how much wrapping paper is needed to cover the larger box?

Question

xguardians · Answer

Set up a proportion:
9 in / 45 in = 15 in / x
Cross multiply:
9x = 675in
Solve for X:
x = 75

75 In of wrapping paper is needed to cover the large box.