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Vsevolod [243]
3 years ago
10

Solve: 7m + 12 = −4m + 78

Mathematics
1 answer:
Mandarinka [93]3 years ago
7 0

7m + 12 = -4m + 78

7m + 4m = 78 - 12

11m = 66

m = 6

I hope you understand...

Mark me as brainliest...

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Answer:

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Step-by-step explanation:

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3 years ago
A refrigerator costs $580 a year to run. A family purchases a new one for $1200 that will save them 22% annually in energy costs
NeTakaya

Answer:

It will take nine years and four months for the refrigerator to pay for itself.

Step-by-step explanation:

The new refrigerator which costs $1200, saves the family 22% annually in energy cost.

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6 0
3 years ago
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Inessa05 [86]

Answer:

D.) If soccer balls are sold for $2.05 or $14.61 each, the store will break even but will not make a profit.

Step-by-step explanation:

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Y= -6x^2+100x-180

where,

a = -6

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c = -180

Now we have to applied the formula which is as follows

x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}$

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= \frac{-100\pm\sqrt{10,000 - 4,320}}{-12}$

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x^2  = \frac{-100 - 75.3658}{-12}$

= \frac{- 175.3658}{-12}

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4 0
3 years ago
Read 2 more answers
Multiply and simplify.
Anuta_ua [19.1K]
Hi, Cupcakesorinkles14 here to your aid your correct answer is 
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3 0
4 years ago
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