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miskamm [114]
3 years ago
13

A can do a piece of work in 20 days and B can do it in 12 days,B work for 9 days,in how many days A alone can do the work​

Mathematics
1 answer:
Lelu [443]3 years ago
4 0

Answer: 9

Step-by-step explanation:

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If Kathy walks 3 miles in 80 minutes how far will she in 120 minutes
zepelin [54]

Answer:

4.5 miles

Step-by-step explanation:

We can use a ratio to solve

3 miles                 x miles

---------------  = ----------------

80 minutes         120 minutes

Using cross products

3 * 120 = 80x

Divide each side by 80

360/80 = 80x/80

4.5 =x

8 0
3 years ago
5m-3/63 = 9/21 solve for m
Volgvan
5M = 9/21+3/63
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5 0
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Substitute the given values into the formula and solve for the unknown variable. If necessary, round to one decimal place
Stells [14]

Answer:

4=H

Step-by-step explanation:

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7 0
3 years ago
Is here something wrong with me?
Furkat [3]

There is nothing wrong with you. Everyone ad their ups and downs

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3 0
3 years ago
Simplify 45 - 8 + 12 - (-25)
Mrac [35]

Answer:

74

Step-by-step explanation:

BODMAS

12-(-25)

=12+25=37

45-8+37

45-8=37

37+37=74

=74

4 0
3 years ago
Read 2 more answers
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