4 years ago

Which property justifies the following statement if a=b then a/d=b/d?

1 answer:

Fed [463]4 years ago

5 0

Division property of equality.

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Zinaida [17]

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sukhopar [10]

Answer: the 3rd one.

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Nastasia [14]

2x^2 + 5x + 2 = 0
(x + 2)(2x + 1) = 0
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Letter C

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Tems11 [23]

Answer:

translate (x,y) (x-5,y+8)

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ivolga24 [154]

Answer:

k=30

Step-by-step explanation:

The formula for calculating the mean from a frequency table is:

$\displaystyle \overline{x} = \frac{ \sum \: fx}{ \sum f}$

we have

So our equation is

$\displaystyle 7= \frac{ 120 + 3k}{30} \\ \implies \dfrac{120 + 3k}{30} = 7$

Solving the equation yields:

$\implies 120 + 3k = 210 \\ \implies 3k = 90 \\ \implies \boxed{k = 30}$

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2 years ago