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kozerog [31]
3 years ago
8

What is the sum of 5a2 - 4a + 3 and -7a2 +4a -6

Mathematics
2 answers:
Pavel [41]3 years ago
5 0
4a-3 it’s the correct answer
zimovet [89]3 years ago
4 0
-4a-3 i think that’s it
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Fifteen years later, a man will be two times as old as he was 15 years ago. How old is he now?
Inga [223]

Answer:

Let the present age of the man be x years.

Age of the man 15 years ago =(x−15) years and

Age of the man 15 years later =(x+15) years

According to the given condition, we have

(x+15)=2(x−15)

⇒x+15=2x−30

⇒x−2x=−30−15

⇒−x=−45 or x=45 years

Hence, the present age of the man is 45 years.

Step-by-step explanation:

Hope it helps you..

Your welcome in advance..

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6 0
3 years ago
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OverLord2011 [107]

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8 0
3 years ago
Solve for C.<br> -5/8c=20
iris [78.8K]
-5/8c = 20....multiply both sides by -8/5 (this cancels out the -5/8 on the left
c = 20(-8/5)
c = -160/5
c = - 32

check..
-5/8(-32) = 20
160/8 = 20
20 = 20 (correct)

so c = -32
8 0
3 years ago
A couch went on a 16% off sale. The sale price is given as $1008. What was the original price of the couch?
scoray [572]

Answer:

1200 dollars

Step-by-step explanation:

x-0.16x=1008

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x=1200 dollars

4 0
2 years ago
Math Help! <br>Answer questions with work
taurus [48]
The answer is 14 because you just have to pick a number to work with so it is 14.
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3 years ago
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