A civic group is selling bumper stickers as a fundraiser. During the first week, they

sold 500 bumper stickers. During the second week, the group sold 50% more

bumper stickers than the first week. During the third week, the group sold 50%

fewer bumper stickers than the second week.

Explain how you can use proportions to find the percent decrease from the first

week's sales to the third week's sales,

Question

Mathematics

Guest

18 February, 06:40

A civic group is selling bumper stickers as a fundraiser. During the first week, they

sold 500 bumper stickers. During the second week, the group sold 50% more

bumper stickers than the first week. During the third week, the group sold 50%

fewer bumper stickers than the second week.

Explain how you can use proportions to find the percent decrease from the first

week's sales to the third week's sales,

+2

Answers (1)

Know the Answer?

Lisa · Answer 1

25%

Step-by-step explanation:

500 bumper stickers sold in the first week is 100%. The bumper stickers sold in the second week is 50% more (150%).

500 / 100 = x / 150

x = 750

750 bumper stickers sold in the second week is 100%. The bumper stickers sold in the third week is 50% less (50%).

750 / 100 = x / 50

x = 375

The bumper stickers sold in the third week as a percentage of the bumper stickers sold in the first week is:

375 / 500 = x / 100

x = 75

The bumper stickers sold in the third week is 75% of the bumper stickers sold in the first week, which means there was a 25% decrease.