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Alex73 [517]
3 years ago
15

Jim adds 20 to it, then doubles it and gets an answer of 99.2. What was the original number?

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
7 0

(n+20)*2 = 99.2

distribute

2n + 40 = 99.2

subtract 40 from each side

2n = 59.2

divide each side by 2

n = 29.6

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(2,1) ----> (5,4)

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6 0
3 years ago
Jillian walked 0.5 miles before she started jogging at an average pace of 5 miles per hour. The equation d = 0.5 + 5t can be use
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Step-by-step explanation: an independent variable is a variable whose variation does not depend on that of another. In the given problem, the independent variable is time, because time will pass by no matter what (without depending in any other variable). The dependent variable in this case is the distance, because how far Jillian goes, depends on how much time she expends walking and jogging.

8 0
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Step-by-step explanation:

8 0
2 years ago
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Genrish500 [490]

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B.x^{2} +2x-8

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6 0
3 years ago
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