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%

Step-by-step 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 =

$\dfrac{\text{length increased}}{\text{First length of wallpaper }}\times100\\\\=\dfrac{3.5}{9.5}\times100\%\approx37\%$

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