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Dimas [21]
3 years ago
9

4 bags of cement do 18m2, how many m2 can be done with 7 bags?

Mathematics
1 answer:
Art [367]3 years ago
5 0

Answer:

You would get 31.5 square meters.

Step-by-step explanation:

To find this, set up a proportion of the amount the first can make and the amount the second can. Use x for the unknown quantity.

4/18 = 7/x

Now cross multiply to solve.

7*18 = 4*x

126 = 4x

31.5 = x

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77julia77 [94]

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Step-by-step explanation:

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6 0
3 years ago
Easy question :)
bulgar [2K]
C. because 2.25 X 3 = 6.75 and 6.75 X 3 is 20.25
3 0
3 years ago
6. What percentage of the children in class 5 is a member of a sports club? 3
Juliette [100K]

Answer:

75%

Step-by-step explanation:

Let x be the percentage for sports club members.

x% of 20 = 15

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5 0
3 years ago
NEED HELP PLEASE ASAP!!!
Blababa [14]

Answer:

13.5

Step-by-step explanation:

213.21/15.8 --->  ((213.21)100)/((15.8)100)

21321/1580 = 13 R 781.

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We only need to be concerned about the tenth and hundredth place digits.

The decimal tells us that it rounds up from 4, so it's 5.

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7 0
1 year ago
Find the distance between each pair of points. round your answer to the nearest tenth.
goldenfox [79]

Answer:

5.4

Step-by-step explanation:

To find the distance between each pair of points, we use the distance formula, which is:

d = \sqrt{(x_{2}-x_{1})^2 + (y_{2} -y_{1})^2  }

So we have

x_{1} = 2\\ x_{2} = 4\\y_{1} = 8\\y_{2}=3

When we plug in the values into the formula we get:

d = \sqrt{(4-2)^2 + (3-8)^2}

d = \sqrt{4 + 25}\\ =\sqrt{29}\\ =5.4

3 0
3 years ago
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