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pickupchik [31]
3 years ago
7

PLEASE HELP!!!

Mathematics
1 answer:
OLga [1]3 years ago
8 0
1. m = -5/2
2. b = 15
3. y = -5/2x + 15
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A line is defined by the equation. The line passes through a point whose y-coordinate is 0. What is the x-coordinate of this poi
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The area of the trapezoid
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Answer:

<h2>A = 82.5 in²</h2>

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7 0
3 years ago
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A function has a constant tripling time. What type of function does this represent?
Olenka [21]
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5 0
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Please help ! This is 7th grade math and I’ve been stuck on this question for 30 minutes!
FinnZ [79.3K]

\dfrac{1}{22}\:\dfrac{\text{in}}{\text{hr}}

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The amount of time from 10pm to 7am is 9 hours. However, the time indicated is 7:10am. Since there are 60 minutes in an hour, 10 min is equal to 1/6 of an hour. Therefore, the total time that the water level of the pool decreased is 9\frac{1}{6} hours or \frac{55}{6} hours. To find the rate at which the water level decreased, we divide the change in the water (in inches) by the time it took to reach that level. So we write

rate of change = \dfrac{\text{change\:in\:height}}{\text{change\:in\:time}}

\:\:\:\:\:\:\:= \dfrac{\frac{5}{12}\:\text{in}}{\frac{55}{6}\:\text{hrs}}

\:\:\:\:\:\:\:=\dfrac{5}{12}\cdot\dfrac{6}{55}\:\dfrac{\text{in}}{\text{hr}}

\:\:\:\:\:\:\:= \frac{1}{22}\:\dfrac{\text{in}}{\text{hr}}

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