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Elis [28]
3 years ago
8

The sum of two numbers is -10.5.

Mathematics
1 answer:
grandymaker [24]3 years ago
4 0

Answer:

-5 and -5.5;

-12.5 and 2

Step-by-step explanation:

Two negative addends, can be added together to give -10.5.

For example:

(-5) + (-5.5) = -5 - 5.5 = -10.5

Also, it is possible for one of the addends to be negative while the other is positive, and their sum will give us -10.5.

For example:

The sum of -12.5 and 2 will give us -10.5.

We are adding a positive and a negative number here. As usual, we will subtract the smaller number from the bigger number, while the result will carry the sign of the bigger number, which in this case is negative sign.

Thus:

(-12.5) + (2) = -10.5

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Suzanne wants to put a fence around her square garden. If the garden covers an area of 49ft^2, how many feet of fencing does she
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Answer:

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Step-by-step explanation:

For this case we know that Suzanne want to put a fance around a square garden with an area of 49 ft^2

The area for a square is given by:

A = x^2

And we can find the dimension for one side like this:

x = \sqrt{A}

Replacing we got:

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Then since we are interested in the how many feet of fencing does she need, we can find the perimeter given by:

P = 4x and replacing we got:

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