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inessss [21]
3 years ago
9

If 8 is added to twice a number and this sum is multiplied by 3ˏ the result is the number multiplied by 3 and 9 is added to the

product.Whats the number?
        
Mathematics
1 answer:
9966 [12]3 years ago
8 0
n-a\ number\\\\(8+2n)\cdot3=3n+9\\\\8\cdot3+2n\cdot3=3n+9\\\\24+6n=3n+9\ \ \ \ /-24\\\\24-24+6n=3n+9-24\\\\6n=3n-15\ \ \ \ /-3n\\\\6n-3n=3n-3n-15\\\\3n=-15\ \ \ \ /:3\\\\3n:3=-15:3\\\\n=-5
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Lerok [7]

Answer:

1. Slope =1.5

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Step-by-step explanation:

The first one

150/100=1.5

Second one

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7 0
3 years ago
Type the correct answer in each box. Consider the sum of cubes identity: a3 + b3 = (a + b)(a2 − ab + b2). For the polynomial 8x3
zhuklara [117]

Answer:

a = 2x, b = 3.

Step-by-step explanation:

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4 0
3 years ago
Find the coordinates of the point <br> 3/10 of the way from A to B.
meriva
The horizontal distance from A to the point = 3/10 * 14 = 4.2, so the c coordinate of the point is -3+ 4.2
= 1.2.
Vertical distance = 3/10 * 12 = 3.6
So the y coordinate = -5+ 3.6
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4 0
1 year ago
U + -5/6 = -1/3 solve for u
Phoenix [80]

Move all terms not containing U to the right side of the equation.

Exact Form:

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Decimal Form:

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8 0
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