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lana66690 [7]
4 years ago
10

A student is trying to solve the system of two equations given below:

Mathematics
2 answers:
marissa [1.9K]4 years ago
6 0

Answer:

(y+z=6)*-3

Step-by-step explanation:

using this would make the top equation or (y+z=6) turn negative and would be this [-3y-3z=-18) using the distributive property. Since the bottom equation has a positive 3y. The -3y from the top equation and 3y from the bottom ones cancel out leaving you with z=-17 when combining like terms.

SpyIntel [72]4 years ago
4 0

Answer:

c is the answer since you are trying to make the ys number (-/+) of the value the other y contains

(3) so you will multiply the first equation by -3 to be able to eliminate y

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V125BC [204]

Answer:

Zero solutions; there are no variables and thus there are no solutions

Step-by-step explanation:

We start out with the equation 9 (x - 3) + 15 = 9x - 11

Which simplifies to 9x - 27 + 15 = 9x - 11

The 9x terms cancel each other out, and we're left with 15 - 27 = -11

And we end up with -12 = -11, which is not true.

This tells us that the equation has zero solutions, because no matter what value we substitute for x, the equation will not be true.

5 0
3 years ago
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Write down the factors of 55. Is 55 a prime or composite number? Explain how you know.​
horsena [70]

Answer:

Composite.

Step-by-step explanation:

because Prime numbers can only be recived when mulipltiy the number and itself, like 3.

55 can be mulipled by 1 AND 11 to get 55

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3 years ago
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What is 4/5 as a percent<br><br> What is 7/8 as a percent
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7 divided by 8 is 0.875, meaning the percentage is 87.5

5 0
3 years ago
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BRO PLS I HAVE TO PASS THIS (click for question) 20 POINTS!
Masja [62]

Answer:

D, E.

Step-by-step explanation:

<u>Simplify</u><u> </u><u>the</u><u> </u><u>expression</u><u> </u><u>inside</u><u> </u><u>the</u><u> </u><u>parentheses</u><u>:</u>

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<u>Multiply:</u>

123 < 6a

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Opt A. 123 < 6(18) = 123 < 108. Incorrect option.

Opt B. 123 < 6(19) = 123 < 114. Incorrect option.

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Opt E. 123 < 6(24) = 123 < 144. Correct option.

3 0
3 years ago
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Answer:

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Step-by-step explanation:

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−2=−2x3

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