Shaun needs to make mortar for brick-laying. It is made in the ratio 7:3 of sand to cement. If 210 kg of sand is used, how much cement is needed?

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asked Feb 11, 2021 99.6k views

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ACascarino · Answer 1 · 2021-02-15T20:29:08+0000

Sand to cement
7:3

210:x

ask yourself what number is needed to multiply by 7 to get 210 ( so you'd divide 210 by 7 which is 30). Multiply the other side by thirty as well to get the value of x

3*30 which is 90

Shaun needs to make mortar for brick-laying. It is made in the ratio 7:3 of sand to cement. If 210 kg of sand is used, how much cement is needed?

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