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Semenov [28]
3 years ago
11

The equation 3w + 4j = 39 is used to determine the number of water bottles w and the number of juice bottles j that can be bough

t for $39. If you purchase 6 bottles of juice, how many bottles of water can you buy?
Mathematics
2 answers:
zlopas [31]3 years ago
6 0

Answer:

5

Step-by-step explanation:

The number of water bottles = w

The number of juice bottles = j

We have, 3w + 4j = 39

When we purchase 6 bottles of juice, j = 6

So,

3w + 4j = 39

3w + 4 \times 6 = 39

3w + 24 = 39

3w = 39 - 24

3w = 15

w = \frac{15}{3}

w = 5

Therefore, we can buy 5 bottles of water.

jarptica [38.1K]3 years ago
3 0

Juice bottles are J, replace j with 6 in the equation and solve for w:

3w + 4(6) = 39

3w + 24 =39

Subtract 24 from both sides:

3w = 15

Divide both sides by 3:

w = 15/3

w = 5

You can buy 5 water bottles.

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