clairekirsopp clairekirsopp

04-03-2018
Mathematics

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If 30 marks equals 40% what is the full marks

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susanwiederspan susanwiederspan

04-03-2018

We can write that 40% of the full amount is 30 marks.

Using x for the full amount, we can say 0.4x=30.

To solve for x, we devide both sides by 0.4 (or equivalently, multiply by 2.5).

We get x = 75 marks.

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