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kow [346]
3 years ago
8

Select the property of equality used to arrive at the conclusion if x-3=7 , then x=10

Mathematics
1 answer:
Fantom [35]3 years ago
8 0

Answer:

The addition property of equality  

Step-by-step explanation:

According to the addition property of equality, if we add the same number to each side of an equation, the equality is still true.

We are given the equation

x – 3 = 7, and we must solve for x.

We want to get x by itself, so we <em>add 3 to each side</em>.

x – 3 + 3 = 7 + 3

             x = 10

We have just used the addition property of equality.

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3 years ago
PLEASE HELP ASAP! A mountain climber is at an altitude of 2.9 mi above the earth’s surface.
shutvik [7]
You can use Pythagorean theorm to solve.

a^2 + b^2 = c^2
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x = ???? = a
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a^2 + b^2 = c^2
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a^2 = 22970.61
\sqrt{a^2} = sqrt{22970.61}
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x = 151.560
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Step-by-step explanation:

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