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  3. You are applying fertilizer to your backyard. The rectangular yard measures 40 f

You are applying fertilizer to your backyard. The rectangular yard measures 40 f

游客2024-01-12  17
问题 You are applying fertilizer to your backyard. The rectangular yard measures 40 feet wide and 70 feet long. You use 6 pounds of fertilizer to treat 700 square feet. The fertilizer comes in 8-pound bags. How many bags of fertilizer will you need to complete the job?
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答案 3
解析 The question asks you to determine the number of bags of fertilizer that will cover your rectangular backyard. According to information in the problem, 6 pounds of fertilizer can cover 700 square feet. Calculate the area of the backyard. The area of a rectangle is determined by multiplying the length(70 feet)by the width(40 feet):
70 × 40 = 2,800
The area of the backyard is 2,800 square feet. The problem states that 6 pounds of fertilizer can cover 700 square feet. Calculate the number of times that 700 will go into 2,800:
2,800 ÷ 700 = 4
You will need 4 times 6 pounds of fertilizer to treat 2,800 square feet:
4 × 6 = 24
Since you will need a total of 24 pounds of fertilizer to treat the backyard, and each bag of fertilizer weighs 8 pounds, divide 24 by 8 to find the number of bags of fertilizer you will need:
24 ÷ 8 = 3
You will need 3 bags of fertilizer to treat a backyard that measures 2,800 square feet.
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