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sweet [91]
3 years ago
11

Please help i don’t know how to do this

Mathematics
1 answer:
Masteriza [31]3 years ago
6 0

Answer: A

Step-by-step

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If 90 is in 80% of value,what is that value
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112.5

Step-by-step explanation:

\frac{90}{?} =\frac{80}{100}

you would then cross multiply. 90 x 100 and 80 x ?

you will then have 9000 = 80?

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Solve for x. x2 = 100 A. -200, 200 B. -100, 100 C. -50, 50 D. -10, 10
ICE Princess25 [194]

Answer:

D. -10, 10

Step-by-step explanation:

Instead of inserting values into x to solve, let's isolate x.

In order to do this, we must take the square root of both sides.

\sqrt{x^{2} } =\sqrt{100}

x=\sqrt{100}

To find the square root of 100, we must figure out what = 100 when multiplied by itself. Reminder, it can be both a positive or a negative square root, as positive times positive is a positive, and negative times negative is a positive.

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<u><em>Hope this helps! :)</em></u>

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2 years ago
Convert 2y-13=4x to slope intercept form
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