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andreev551 [17]
4 years ago
5

Which of the following does not have a sum of 6? 2 + 4 8 + (-2) -4 + (-2) -2 + 8

Mathematics
1 answer:
miss Akunina [59]4 years ago
6 0
2 + 4 = 6

8 + (-2) = 6

-4 + (-2) = -6

-2 + 8 = 6

Since the third option equals -6, the answer would be: -4 + (-2).
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Answer:

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Step-by-step explanation:

We are given the following in the question:

Leakage rate of faucet = 1 oz per minute

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1 gallon = 128 oz

a) water are wasted in a year

1 hour = 60 minutes

1 day = 24 hours

1 year = 365 days

1\text{ year} = 365\times 24\times 60\text{ minutes}\\1\text{ year} = 525600\text{ minutes}

Amount of water wasted =

\text{Leakage rate}\times \text{Time}\\=1 \times 525600\\=525600\text{ oz}\\\\=\dfrac{525600}{128}\\\\=4106.25\text{ gallons}

Thus, 4106.25 gallons of water is wasted every year.

b) additional money spent

=\time{Cost}\times \text{Amount of water wasted}\\\\= \dfrac{11.20}{1000}\times 4106.25\\\\=45.99\$ \approx 46\$

Thus, approximately $46 is the additional money spent on water bill.

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3 years ago
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