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Anna [14]
4 years ago
13

Solution the the system of equations 2x+4y=-8 and -2x+3y=29

Mathematics
1 answer:
Zina [86]4 years ago
5 0
The answer to this is y=3 and x=-10.
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Which of the following terms can be combined in this expression? -3-x/5+6.2y+20.5x-3/8y
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Answer:

-\frac{x}{5} and 20.5x

-\frac{3}{8}y and 6.2y

Step-by-step explanation:

-3-x/5+6.2y+20.5x-3/8y

-3-\frac{x}{5}+6.2y+20.5x- \frac{3}{8} y

We are given an expression with 5 terms

The terms that has same variables with same exponent are like terms. WE combine only like terms. Constants are also like terms.

In the given expression , the fractions -\frac{x}{5} and 20.5x have same 'x' . so they are like terms. we can combine these terms.

the fractions -\frac{3}{8}y and 6.2y have same 'y' . so they are like terms. we can combine these terms.

8 0
3 years ago
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The temperature changed at a rate of -3 degrees per hour. How long did it take for the temperature change to be -18
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Answer:

6 Hours

Step-by-step explanation:

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Lol hopefully I helped !!

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Step-by-step explanation:

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