Express x% of 4 plus y% of 5 as a percentage of 11

Question

Mathematics

Papa

30 June, 01:31

Express x% of 4 plus y% of 5 as a percentage of 11

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Answers (1)

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Elaine Walsh · Answer 1

X% of 4 = x*4/100 = 0.04x

y% of 5 = x*5/100 = 0.05y

x% of 4 + y% of 5 = 0.04x + 0.05y

How you express a number, n, as percentage of 11?: [n/11]*100 = 9.10n %

Then make n = 0.04x + 0.05y

9.10n % = 9.10[0.04x + 0.05y] % = (0.3656x + 0.455y) %

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