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

Mathematics

1 answer:

marshall27 [118]3 years ago

8 0

Answer: 260 gallons

Step-by-step 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.

$\frac{15}{3} =\frac{x}{52}$ [cross multiply]

$3x=780$ [divide both sides by 3]

$x=260$

Therefore, they will need to purchare 260 gallons.

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