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cricket20 [7]
3 years ago
11

How can the Subtraction Property of Equality be used to solve addition equations?

Mathematics
2 answers:
IrinaVladis [17]3 years ago
8 0
To keep the balance, add 5 to each side. Example 2. Solve<span> the </span>equation<span> -8 = n - (-4). Solution: After simplifying the right side of the</span>equation<span>, use the </span>subtraction property of equality<span> to </span>subtract<span> 4 from both sides of the</span><span>equation
</span>
marta [7]3 years ago
3 0
Ok, so for example, we have an equation of 4x+5 = 17. To solve for x, we first subtract 5 on both sides. This is called Subtraction Property of Equality.
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Step-by-step explanation:

As per given description, we have

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Sample proportion : \hat{p}=\dfrac{156}{500}=0.312

Test statistic for population proportion :-

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\\\=\dfrac{0.312-0.35}{\sqrt{\dfrac{0.35(1-0.35)}{500}}}\\\\=-1.78146747757\ \ \text{(Simplified)}\\\\\approx-1.78

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A distance of 30 miles on a map is represented by a 2-inch line. If the map is enlarged to 3 times its size, what will be the sc
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Answer:

\frac{1}{5}\frac{in}{miles}

Step-by-step explanation:

we know that

The original scale of the map is

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If the map is enlarged to 3 times its size

then

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