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icang [17]
4 years ago
14

When Nikki and Kara worked together last year, they painted a fence in 8 hours. The previous year, Nikki painted the fence by he

rself. The year before that, Kara painted it by herself, but it took 12 hours longer. How long did it take Kara to paint the fence?
a. 8 hours
b. 24 hours
c. 12 hours
d. 20 hours
Mathematics
1 answer:
motikmotik4 years ago
7 0
I believe d is the answer please contact me if its wrong
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Answer:

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The variables are defined as follows:

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4.00 = 0.29<em>t</em> + 2.50

0.29<em>t</em> = 4.00 - 2.50

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