Question

Jada was using square stickers with a side length of 3/434 inch to decorate the spine of a photo album. The spine is 10 1/21012 inches long. If she laid the stickers side by side without gaps or overlaps, how many stickers did she use to cover the length of the spine?

Answer 1

Answer: The number of stickers she used to cover the length of the spine = 14.

Explanation:

Given: The length of spine =
`10\frac12` inches =
`(21)/(2)` inches

Length of each sticker =
`\frac34` inch

If she laid the stickers side by side without gaps or overlaps, the number of stickers she use to cover the length of the spine =
`\text{(Length of spine)}/ (\text{Length of each sticker})`

`=(21)/(2)/(3)/(4)\\\\=(21)/(2)*(4)/(3)\\\\=(7*2)/(1)=14`

The number of stickers she used to cover the length of the spine = 14.