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Kaylis [27]
3 years ago
12

Eight times a number plus 3 times

Mathematics
1 answer:
klemol [59]3 years ago
5 0

Answer:

Step-by-step explanation:

8x + 3x = 9 + 12x , x = - 9

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sergejj [24]

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Step-by-step explanation:

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3 years ago
What is the slope of D and E??
Mazyrski [523]

Answer:

-4 and 0

Step-by-step explanation:

Rise over Run would give us the slope.

In the first graph, It goes down 4 while it goes 1 to the right.

This means that -4/1 = -4.

The second graph does not go up or down, meaning 0, while it goes 1 to the right.

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4 0
2 years ago
Solve the proportion to determine the value of x. <br><br> 2x / 5 = x+3 / 3
ale4655 [162]
When you solve a proportion, your first step should be to cross-multiply.

\frac{2x}{5} = \frac{x + 3}{3}

When you cross-multiply, you should get this equation:

(2x)(3) = (x + 3)(5)

Now, solve it using algebra.

(2x)(3) = (x + 3)(5)       Multiply
       6x = 5x + 15         Subtract 5x from both sides
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The value of x is 15.
4 0
3 years ago
Simplify 5.47+2.758+12.3
-Dominant- [34]

Answer:

20.528

Step-by-step explanation:

8 0
3 years ago
I need help with -1 + (-4) + (-9) PLEASE DO THE STEP BY STEP EXPLANATION
Lera25 [3.4K]

Answer:

yes

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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