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tresset_1 [31]
3 years ago
14

Using elimination (combination), which variable will be eliminated first? 5x-y=-21x+y=-3

Mathematics
1 answer:
stiks02 [169]3 years ago
7 0

Answer:

Option B) The variable Y will cancel out first.

Step-by-step explanation:

we have

5x-y=-21 ----> equation A

x+y=-3 ----> equation B

Solve by elimination

Adds equation A and equation B

5x-y=-21

x+y=-3

--------------

5x+x=-21-3 ----->variable y will be eliminated first

6x=-24

x=-4

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Mamont248 [21]

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3 years ago
What is the largest multiple of 9 which is smaller than -70?
zysi [14]

Answer:

Step-by-step explanation:

Let's say the number "n" were the largest multiple of 9. But then:  

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So there can't be a largest multiple of 9 (or any number).

5 0
4 years ago
Read 2 more answers
Wayne and Kim were digging in the sand at the beach . Wayne dug a hole that was 12 inches deep and Kim dug a hole that was 9 inc
Ivan
Well since Kim dug a hole bigger than 12 inches by 9 inches, all you would have to do is add 12 to 9 which equals 21 inches. For the picture, you could draw Kim's hole being equal to Wayne's hole plus 9. little stick figures or something :)
7 0
3 years ago
Given that<br>F1 = 50 N<br>r1= 3 m<br>r2 = 2 m<br>The beam does not move. How large is force F2?​
Phoenix [80]

Answer:

6m

Step-by-step explanation:

If it doesn't move it's just the same force

5 0
4 years ago
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gladu [14]
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