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21-12-2019
Mathematics

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(c) In 2017, Lauren's monthly income of $1800 was 25% less than her monthly income in 2016.
Calculate her monthly income in 2016.
[2]Marks

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21-12-2019

Answer:

$2400

Step-by-step explanation:

Let her monthly income in 2016 be x. The equation is x-(25%×x)=1800

x-(25x/100)=1800

x-x/4=1800

4x-x=7200

3x=7200

x=7200/3

x=2400

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