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Zinaida [17]
3 years ago
6

PLEASE ANSWER QUICKLY!!

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0

Answer:

16 hours

Step-by-step explanation:

Since each hour they do 5/8 of a gallon and there are 10 gallons in total

the amount of time is 10/(5/8) hours

dividing is multiplying by the reciprocal so 10/(5/8)=

10(8/5)=80/5=

16 hours

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Answer:

y=\frac{1}{3}x-\frac{16}{3}

Step-by-step explanation:

Arranging the given equation in slope-intercept form ( y = mx + b ):

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<em>We know that the perpendicular line would have a slope (m) that is </em><em>negative reciprocal </em><em>of this (\frac{1}{3}). Thus we can write the perpendicular line's equation as  y=\frac{1}{3}x+b. </em>

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<em>Now putting x = 4 and y = -6 into the equation, we can solve for b:</em>

<em>y=\frac{1}{3}x+b\\-6=\frac{1}{3}(4)+b\\-6=\frac{4}{3}+b\\b=-6-\frac{4}{3}\\b=-\frac{16}{3}</em>

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Thus, the equation of the perpendicular line is  y=\frac{1}{3}x-\frac{16}{3}

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