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sashaice [31]
2 years ago
3

In order to solve the following system of equations by addition, which of the following could you do before adding the equations

so that one variable will be eliminated when you add them?
4x-2y=7
3x-3y=15
A.Multiply the top equation by 3 and the bottom equation by 4
B.Multiply the top equation by 3 and the bottom equation by 2
C.Multiply the top equation by -3 and the bottom equation by 2
D.Multiply the top equation by 1/3.
Mathematics
1 answer:
slega [8]2 years ago
7 0
The answer is C. Multiply the top eq by -3 and the bottom one by 2
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Answer:

The answer is A (i just took the test)

Step-by-step explanation:

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The Relative Frequency: 0.05   0.35   0.26   0.13     0.21

As you can see the outcomes do not appear to be equally likely since 0.05 and 1 are not close in number range along with the other options

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A barrel of crude oil contains about 5.61 cubic feet of oil. How many barrels of oil are contained in 1 mile (5280 feet) or a pi
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Answer:

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2 years ago
Solve the following multiplication and division problems. a. 8 T. 1,398 lb. 14 oz. × 6 b. 349 lb. 6 oz. ÷ 130 c. 6 T. 294 lb. ÷
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First we need to change it in 'oz'.

As we know that

1\ ton=32000\ oz\\\\1\ lb=16\ oz

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8\times 32000+1398\times 16+14\ oz\\\\=278382\ oz

8 T. 1,398 lb. 14 oz. × 6 becomes

278382\times 6\\\\=1670292\ oz

b) 349 lb. 6 oz. ÷ 130

It becomes,

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6\times 32000+294\times 16\ oz\\\\=196704\ oz

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Solve the inequality. c – 5 ≤ 6
Vilka [71]
Hello There!

Follow through:
c - 5\leq 6
Add 5 to both sides:
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C is smaller than or equal to 11.

Hope This Helps You!
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