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soldier1979 [14.2K]
3 years ago
14

Help plssssssssssssssssssss

Mathematics
1 answer:
Whitepunk [10]3 years ago
5 0

Answer: -74

Step-by-step explanation:

First you have to solve - 2y - 9 = 7 to find what "y" equals so we can plug that into 9y - 2

1. Solve -2y - 9 =7:

-2y = 16

y = -8

2. Plug -8 into the expression 9y - 2:

9(-8) - 2

-72 -2

-74!

Im sorry if i didnt do this correctly :/

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B Christian installed an electric pump to pump water from a borehole into a 30 000 litre cement dam. If the water is pumped at a
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Given the amount of water needed to fill the cement dam and the water pump rate, the time needed to fill the dam is 400 minutes or 6hours 40minutes.

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<h3>How long does it take to fill the dam?</h3>

Given that;

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