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3 years ago

14

yesterday a recycling center collected 679 cans.the center collected 225 fewer bottles than cans,and 178 fewer newspaper bundles

than bottles.how many newspaper bundles did the center collect yesterday?

1 answer:

ahrayia [7]3 years ago

5 0

276 because 679-225= 154 and 154-178=276

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Let's rewrite each equation in the Slope-Intercept Form of the Equation of a Line. First, let's start with the main equation:

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$A) \ y = -\frac{2}{5}x-2 \\ \\ B) \ 2x+5y=-10 \therefore y=-\frac{2}{5}x-2 \\ \\ C) \ 2x-5y=-10 \therefore y=\frac{2}{5}x+2 \\ \\ D) \ y+4=-\frac{2}{5}(x-5) \therefore y=-\frac{2}{5}x-2 \\ \\ E) \ y-4=\frac{5}{2}(x + 5) \therefore y=\frac{5}{2}x+\frac{33}{2}$

For two perpendicular lines it is true that the product of its slopes is:

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$y = -\frac{2}{5}x-2 \\ \\ -4=-\frac{2}{5}(5)-2 \\ \\ -4=-2-2 \\ \\ \boxed{-4=-4} \ True!$

Finally, the right answer are:

$A) \ y = -\frac{2}{5}x-2 \\ \\ B) \ 2x+5y=-10 \\ \\ D) \ y+4=-\frac{2}{5}(x-5)$

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