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LenaWriter [7]
3 years ago
10

Which equation is equivalent to the given equation? 7m+11=-4(2m+3)

Mathematics
1 answer:
Vladimir [108]3 years ago
8 0

Answer/Step-by-step explanation:

7m + 11 = -4(2m + 3)

<u>Use distributive property:</u>

7m + 11 = -8m - 12

<em>Therefore the equations are equivilent!</em>

<h2><u><em>Will gladly take Brainliest, please!!!</em></u><em> =D</em></h2>

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Factor completely.<br> 2x4 + 4x3 – 30x2? =
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Answer: -40

Multiply 2 by 4.
8+4•3-30•2
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Multiply-30 by 2
8+12-60
Simplify by adding and subtracting:
Add 8 and 12
20-60
Subtract 60 from 20
-40
4 0
3 years ago
One half the sum of a number z and 3 1/2 is 4 1/2
solong [7]
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3 years ago
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Ainat [17]
Hi, check my ans, tell me if anything is wrong. Ok?

8 0
3 years ago
mark invests 8000 in an account that pays 12% interest and 2000 in one that pays 8%. if he leaves the money in the accounts for
frez [133]

mark must leave it for 5.5 months or 5 and half moths to gain 5600 in interest​ .

<u>Step-by-step explanation:</u>

Here we have , mark invests 8000 in an account that pays 12% interest and 2000 in one that pays 8%. if he leaves the money in the accounts for the same length of time, We need to find how long must he leave it to gain 5600 in interest​ . Let's find out:

Let mark invests 8000 in an account that pays 12% interest and 2000 in one that pays 8% for time x months , So total interest gain is 5600 i.e.

⇒ \frac{8000(12)}{100}(x) +\frac{2000(8)}{100}(x) =5600

⇒ \frac{8000(12)+2000(8)}{100}(x) =5600

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⇒ x =\frac{5600}{1020}

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Therefore , mark must leave it for 5.5 months or 5 and half moths to gain 5600 in interest​ .

6 0
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Answer:

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Step-by-step explanation:

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