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pochemuha
3 years ago
7

Please help -2x-6-x=-x-4x-8

Mathematics
1 answer:
BigorU [14]3 years ago
7 0

Answer:

x = -1

Step-by-step explanation:

First, add x to both sides.

-2x-6-x+x=-x-4x-8+x

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

Next, Refine it.

-2x - 6 = -4x - 8

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

Now, add 6 to both sides.

-2x - 6 + 6 = -4x - 8 + 6

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

Now we Simplify.

-2x = -4x - 2

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

Add 4x to both sides.

-2x + 4x = -4x - 2 + 4x

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

Simplify again.

2x = -2

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

Divide both sides by 2.

2x/2 = -2/2

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

And we're almost finish! Just need to simplify.

x = -1.

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Answer is option C

Mr. Jones jogs the same route each day. The amount of time he jogs is inversely proportional to his jogging rate.

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k is the constant of proportionality

We check with each option and identify which option gives us same K value

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2.5= \frac{k}{4} so k = 10

3.75= \frac{k}{6} so k = 22.5

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(b) 3 mph for 2 hours and 4.5 mph for 3 hours

2= \frac{k}{3} so k = 6

3= \frac{k}{4.5} so k = 13.5

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(c) 4 mph for 2.5 hours and 5 mph for 2 hours

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2= \frac{k}{5} so k =10

K values are  same .

Answer is option C


3 0
3 years ago
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Answer:

Step-by-step explanation:

Following PEMDAS:

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1 year ago
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