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Dafna11 [192]
4 years ago
12

(-7x+8y-2z)+(-9x-y+6z)​

Mathematics
2 answers:
Svetach [21]4 years ago
3 0

Answer: the answer is -16x+7y+4z

Step-by-step explanation:

iren2701 [21]4 years ago
3 0

Answer: -16x+7y+4z

Hope it helped

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A sea lion was swimming at 2 feet below sea level. The number line shows
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Start at zero, then go to the left two times, then go down eight more. The new location would be negative ten.

Step-by-step explanation:

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3 years ago
Orly uses 2 cups of raisins for every 12 cups of trail mix she makes
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2 cups of raisins = 1 trail mix

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4 years ago
.45 is 1/10 of what decimal?
Butoxors [25]

Answer:

4.5

Step-by-step explanation:

To get the answer, you have to multiply the number 0.45 by the denominator of 1/10. [The denominator is 10.]The reason for this is because 10 is the whole number of parts. When you multiply 1/10 x 0.45, you get 4.5 [Just move the decimal point one place to the right because 10 has one zero.]

To double check your answer, divide 4.5 by 10 or multiply 4.5 x 1/10. Either way you get 4.5, so that's the correct answer.

I hope this helps!

6 0
3 years ago
Please help! I have no clue how to do this problem. Any help would be appreciated:)
lutik1710 [3]

Answer:

13

Step-by-step explanation:

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4 0
3 years ago
Solve the system of equations using substitution or elimination: 2x – y = 0 x + 3y = -14
VLD [36.1K]

Answer:

<h2>x = -2 , y= -4</h2>

Step-by-step explanation:

\begin{bmatrix}2x-y=0\\ x+3y=-14\end{bmatrix}\\\\\mathrm{Isolate}\:x\:\mathrm{for}\:2x-y=0:\quad x=\frac{y}{2}\\\\\mathrm{Subsititute\:}x=\frac{y}{2}\\\\\begin{bmatrix}\frac{y}{2}+3y=-14\end{bmatrix}\\\\\mathrm{Simplify}\\\\\begin{bmatrix}\frac{7y}{2}=-14\end{bmatrix}\\\\\mathrm{Isolate}\:y\:\mathrm{for}\:\frac{7y}{2}=-14:\quad y=-4\\\\\mathrm{For\:}x=\frac{y}{2}\\\\\mathrm{Subsititute\:}y=-4\\x=\frac{-4}{2}\\\\\frac{-4}{2}=-2\\\\x=-2,\:y=-4

6 0
3 years ago
Read 2 more answers
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