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Andre45 [30]
3 years ago
11

Find the sum of-10x^2-x+6 and 10x^2-5

Mathematics
1 answer:
Sindrei [870]3 years ago
4 0

Answer:

=-10x^2-x+6adn

Step-by-step explanation:

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The length of a table is 16 inches more than its width. If the area of the table is 720 square inches, of what is it’s length?
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Let the width of the table be = x inches

As the length of a table is 16 inches more than its width, so length = x+16

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3 years ago
The value of Maggie's car decreased by 20% since last year, when she bought it. If the car is now worth $15,000.00, how much was
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-2 (2x + 11) = 5x + 14
amid [387]

Answer:

x=-4

Step-by-step explanation:

First, write the expression and distribute.

-2(2x+11)=5x+14

-4x-22=5x+14

Add one of the variables to the other side (it makes solving a lot easier). I'll add 4x to both sides because it won't result in a negative x.

-4x-22=5x+14

<u>+4x      +4x</u>

-22=9x+14

Now, subtract 14 on both sides.

-22=9x+14

<u>-14        -14</u>

-36=9x

Divide both sides by 9.

-36=9x

<u>/9   /9</u>

-4=x  or  x=-4 (they both mean the same thing)

Have a wonderful day! I hope this helped :3

3 0
3 years ago
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