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42 votes
At that rate, about how many gallons of milk will they need to purchase in a year’s time?

Give your answer as a whole number.

At that rate, about how many gallons of milk will they need to purchase in a year-example-1
User Sjoerd Van Den Berg
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1 Answer

14 votes
14 votes

Answer: 260 gallons

Explanation:

We can use a proportion to solve this problem. We know that a family used 15 gallons of milk every 3 weeks. Since the problem asks for how much they will need for a year, we can gather that a year is 52 weeks. We can come up with the following proportion.


(15)/(3) =(x)/(52) [cross multiply]


3x=780 [divide both sides by 3]


x=260

Therefore, they will need to purchare 260 gallons.

User Nikdeapen
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