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oksian1 [2.3K]
4 years ago
10

Marty is explaining to Susan how to solve the following problem, -4 – (-5)

Mathematics
1 answer:
Alexxx [7]4 years ago
4 0

Answer:

The correct answer is:

To subtract an integer, add its opposite; -4 + 5 = 1

Step-by-step explanation:

Marty is explaining to Susan how to solve the following problem, -4 – (-5)  

He told Susan that to subtract an integer, add its opposite.

We know that whenever we solve the two terms, first we multiply the signs.

It means that the negative sign outside the round bracket will be multiplied with the negative sign of -5

That is,

-4 - (-5)

By multiplying the signs we get the terms:

-4 + 5

=1

Thus the correct option is D....

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7 0
3 years ago
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jenyasd209 [6]

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7 0
3 years ago
Please Help!! This is Geometry.​
dolphi86 [110]

If M is the midpoint of PQ, then PM and MQ are equal.

As PM and MQ are given , equal them to each other to solve for x.

7x+8=5x+20

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PM=7x+8

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(you can already tell MQ is also 50 as PM and MQ are equal, but we still solve for MQ just for the fun of it)

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MQ=50

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Have a great night.

7 0
3 years ago
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Factor this -5x2 + 15x + 140
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