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k0ka [10]
1 year ago
14

5. If 15 men can finish a work in 16 days in how many days will 8 men can finish the same work? a. 15 b. 20 c. 30 d. 42​

Mathematics
2 answers:
Gnom [1K]1 year ago
7 0

Answer:

C. 30

Step-by-step explanation:

15 men do work in 16 days

This means that 7.5 men (15/2) would do that same work in 32 days (16x2).

If the number of men increase, the amount of days decrease.

8 men would do that work in 30 days

8 men > 7.5 men

30 days < 32 days

mars1129 [50]1 year ago
5 0

Answer:

Option c.

Step-by-step explanation:

It is an inverse proportion, fewer workers more days to finish the job.

15 -----16

8 ----- x

x = (16)(15)/8 = 240/8 = 30 days

Hope this helps

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Grace has a 15 inch diameter bicycle tire. How many revolutions will it make traveling 500 feet?
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Answer:

Revolution = 127.24 revolutions

Step-by-step explanation:

<em><u>Circumference of the tire = πD</u></em>

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47.1 inch = 3.93 feet.

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5 0
2 years ago
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qaws [65]
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Arrange the following numbers in order from greatest to least: 7,361;7614
stepladder [879]
7,614 ,7,361,
Hope this helped.
6 0
3 years ago
Find the range of f(x) = -x + 4 for the domain (-3,-2,-1,1).
timofeeve [1]
The domain: D={-3;-2;-1; 1}

f(x) = -x + 4

subtitute

f(-3) = -(-3) + 4 = 3 + 4 = 7
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Answer: The range: {3; 5; 6; 7}
4 0
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