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Arada [10]
3 years ago
8

Simplify.5(x+2) + 2(x-5)Α.7x-3B. 7xC 7x+ 20D.0Ε. 2x +4​

Mathematics
2 answers:
FrozenT [24]3 years ago
4 0

Answer:

B=7x

Step-by-step explanation:

5(x+2)+2(x-5)

5x+10+2x-10

since 10-10=0, it just won't show, there's no need to say "0"

5x+2x+10-10

7x+0

so just

7x

crimeas [40]3 years ago
4 0

Answer:7x

Step-by-step explanation:

5 times x 5 times 2 = 5x + 10

2 times x 2 times -5 = 2x -10

5x +2x = 7x

10- 10= 0

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Step-by-step explanation:

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and 1/6*18 and get 3 students

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3 years ago
If one batch of play dough uses 1/8 cup of salt how many batches of Play-Doh could you make if you had 3 cups of salt?
Neporo4naja [7]

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Step-by-step explanation:

3 0
3 years ago
The price of a DVD is $19 . The price is 12% lower than last week. What was the price of the DVD last week? Round your answer to
nataly862011 [7]

Answer:

The original cost of the DVD was $21`.59

Step-by-step explanation:

In order to find this, you first must note that the new price is 88% of the older price. We get this since there was a subtraction of 12%.

Now knowing that, we can divide the new price by the percentage paid and it will give us the original price.

$19/88% = Original Cost

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5 0
3 years ago
What are the solutions of the system?
svetlana [45]

Answer:

Option C. No solution is the right answer.

Step-by-step explanation:

Here the given equations are y = x²+2x+3 -----(1)

and y = 4x-2 -------(2)

Now we substitute the value of y from equation 2 into 1.

x²+2x+3 = 4x-2

x²+2x+3-2x = 4x-2-2x

x²+3 = 2x-2

x²+3-2x = 2x-2x-2

x²-2x+3 = -2

x²-2x+5 = 0

Then value of x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}

=\frac{+2\pm \sqrt{4-4\times 1\times 5}}{2}

=\frac{2\pm \sqrt{4-20}}{2}

Since in this solution √(-20) is not defined. Therefore there is no solution.

3 0
3 years ago
Read 2 more answers
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