Friday, 25 August 2017

Maths - Percentages


Kimberly’s family went out for dinner. The cost of the meal was $140. They gave a 15% tip.
How much did they tip?

Answer:
$21.00

Working out:
15% of 140
15% of 100 = 15
15% of 40
=
10% of 40 + 5% of 40 = 6
4 + 2 = 6 15+6=21

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