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andrezito [222]

3 years ago

13

On a map of a city, the scale is 1 centimeter to 500 meters. If it is 4 kilometers between city hall and the library, how many c

entimeters is it on the map. a. 8 cm b. 125 cm c. 2,000cm d. 80 cm

1 answer:

Norma-Jean [14]3 years ago

7 0

The answer is C 2,000cm

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nasty-shy [4]

I suppose you mean

$f(x) = \dfrac{x+5}{x+1}$

Then

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$\dfrac{f(x)-f(3)}{x-3} = \dfrac{\frac{x+5}{x+1}-2}{x-3} \\\\ \dfrac{f(x)-f(3)}{x-3} = \dfrac{\frac{x+5-2(x+1)}{x+1}}{x-3} \\\\ \dfrac{f(x)-f(3)}{x-3} = \dfrac{-x+3}{(x+1)(x-3)} \\\\ \dfrac{f(x)-f(3)}{x-3} = \boxed{-\dfrac{x-3}{(x+1)(x-3)}}$

If it's the case that <em>x</em> ≠ 3, then (<em>x</em> - 3)/(<em>x</em> - 3) reduces to 1, and you would be left with

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2 years ago

Mallorie has $3 in her wallet. If this is 10% of her monthly allowance, what is her monthly allowance?

LiRa [457]

Ok so let me tell you how can this be done:
<span>The part she has is $3. The percent is 10%. So,
</span><span><span>3 /.10</span>= 30</span><span> 1/10 = 0.10
</span>This is true because of the formula
<span><span>part / </span><span>whole </span></span>×100=percen<span>t
</span>Hope this is useful

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nexus9112 [7]

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