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olga nikolaevna [1]
3 years ago
15

A—15 b-30 c-36 d-72asap

Mathematics
1 answer:
3241004551 [841]3 years ago
8 0

Answer:

C 36

Step-by-step explanation:

1/2(base)(height)

1/2(8)(9)

1/2(72)

=36

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If it takes 4 men 6hours to repair a road, how long will it take 7 men to do the job if they work at the same rate.
Crank
Tricky question. This isn't a ratio question even though it seems like one.

First divide 7 by 4.
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With more men, the hours taken to repair a road will be even shorter.

So next divide 6 by 1.75.
6 \div 1.75 = 3.43

Answer : It'll take 3.43 hours to do the job if they work at the same rate.

Hope this helps. - M
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4 years ago
Divide 735 in the ratio 3:2
Irina18 [472]
First add the 2 numbers in the ratio:

3+2 = 5

divide the 735 by 5:

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now multiply 147 by 3 and then by 2 and that will be the ratios:

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4 years ago
15c² - 5c. Factorise completely ​
KATRIN_1 [288]

Looking at the problem, what we must do to complete this question is to completely factor the expression that was provided.  The expression that was provided is 15c^2 - 5c.

The first step that we must do is to take a look at the expression and see what the two pieces of the expression have in common.  We can see that both 15c^2 and -5c have the number 5 and the variable c associated with them so we can factor out those two.

<u>Factor out 5c</u>

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Now we have completely factored out the expression that was provided in the problem statement and we came to final answer of 5c(3c - 1).

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katen-ka-za [31]

Answer:

12.

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Answer:

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