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erma4kov [3.2K]
3 years ago
5

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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3 years ago
How many solutions does this equation have? -4(5-3x)=12x+20​
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Step-by-step explanation:  We are given to find the number of solutions to the following equation :

-4(5-3x)=12x+20~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

To find the number of solutions, we must solve the given equation.

The solution of equation (i) is as follows :

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So, the given equation has no solution.

Thus, the number of solutions to the given equation is zero.

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4 years ago
Add. 4x−3x2−2x+−3x+3x2−2x
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Answer:

Step-by-step explanation:

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7 0
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