Answer:
The percent of the increase in the amount of wallpaper is 37% to the nearest percent
Step-by-step explanation:
The percentage of increase = [(New - original) ÷ original] × 100%
∵ Frankie would need 9.5 yards of wallpaper to decorate her room
∴ The original value = 9.5 yards
∵ The wallpaper she chose had a large pattern, so instead she
needed 13 yards of that paper
∴ The new value = 13 yards
→ By using the rule above
∵ Percent of increase = [tex]\frac{13-9.5}{9.5}[/tex] × 100%
∴ Percent of increase = [tex]\frac{3.5}{9.5}[/tex] × 100%
∴ Percent of increase = 0.36842105 × 100%
∴ Percent of increase = 36.842105%
→ Round it to the nearest percent (whole number)
∴ Percent of increase = 37%
The percent of the increase in the amount of wallpaper is 37% to the nearest percent
