MathsWhizz1928 MathsWhizz1928

21-05-2016
Mathematics

Answered

This is urgent!!! Increase £400 by 3.2% how do you do it

Verified Answer :

21-05-2016

10% of 400 = 40
1% of 400 = 4
0.1% of 400 = 0.4

(3 x 1%) + (2 x 0.1%) = 3.2%
3.2% = 12.8
Answer is 412.8 pounds

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21-05-2016

to get 3.2% : 400 x \(\frac{3.2}{100}\) = 12.8

12.8 + 400 = £412.80

Answer Link

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