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2 answers:
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Answer:
It will take 9 hours with 4 painters to paint 720 feet of fence.
Step-by-step explanation:
Given that,
The time needed to paint a fence varies directly with the length of the fence
.......(1)
and inversely with the number of painters
.....(2)
Combination of (1) and (2) is
where t represents time, represents length of fence, P represents number of painters.
Again we can write the above equation as
Given that,
It takes 7 hours with 2 painters to paint 280 feet of fence .
We need to find time to paint 720 feet of fence with 4 painters.
=7 hours,
=280 feet,
=2,
=? ,
= 720 feet,
=4
It will take 9 hours to paint 720 feet of fence with 4 painters.
Answer:
1. a = 14
2. m = 8
3. N/A
4. m = 2
5. N/A
6. n = 0, , 0.36
7. x = 27
8. x = 65
Step-by-step explanation:
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