Question

Frankie calculates that she will need 9.5 yards of wallpaper to decorate her room. The wallpaper she choose has a large pattern so instead she needs 13 yards of that paper. what is the percentage of increase rounded to the nearest percentage, in the amount of wallpaper she needs?

Answer 1

Answer: The percentage of increase in the amount of wallpaper she needs = 37%

Explanation:

Given: First length of wallpaper = 9.5 yards

Increased length of wallpaper = 13 yards

length increased = (Increased length of wallpaper) - (First length of wallpaper )

= 13 -9.5

= 3.5 yards

The percentage of increase in the amount of wallpaper she needs =

`\frac{\text{length increased}}{\text{First length of wallpaper }}*100\\\\=(3.5)/(9.5)*100\%\approx37\%`

Hence, the percentage of increase in the amount of wallpaper she needs = 37%