21-01-2019
Mathematics

contestada

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

Respuesta :

MrGumby MrGumby

24-01-2019

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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