3 years ago

What is -8/15+(-1/15

Mathematics

1 answer:

Vlad [161]3 years ago

7 0

Answer:

-3/5

Step-by-step explanation:

-8/15 + (-1/15) = -8/15 - 1/15 = -9/15 = -3/5

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Answer:

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Step-by-step explanation:

Multiply square feet per person times the number of persons to find square feet.

The units analysis looks like this:

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Answer:

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Step-by-step explanation:

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3 years ago

−5x+2y=9 y=7x x= y=

Serhud [2]

$- 5x+2y=9 \\ y=7x$

We know that y=7x, so we just need tu put it into the 1st equation

$- 5x + 2 \times 7x = 9 \\ - 5x + 14x = 9 \\ 9x = 9 | \div 9 \\ 9x \div 9 = 9 \div 9 \\ x = 1$

So we found x. Now we can find y

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Answer:

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