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Julia earns $28 per hour - HSC - SSCE Mathematics Standard - Question 7 - 2019 - Paper 1

Question 7

Julia earns $28 per hour. Her hourly pay rate increases by 2%. How much will she earn for a 4-hour shift with this increase? A. $2.24 B. $28.56 C. $112 D. $114.24

Worked Solution & Example Answer:Julia earns $28 per hour - HSC - SSCE Mathematics Standard - Question 7 - 2019 - Paper 1

Step 1

Calculate the increase in hourly rate

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Answer

To find the increase in Julia's hourly rate, multiply her current rate by the percentage increase:

ext{Increase} = 28 imes 0.02 = 0.56

So, her new hourly rate will be:

ext{New Hourly Rate} = 28 + 0.56 = 28.56

Step 2

Calculate earnings for a 4-hour shift

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Answer

Next, to find out how much she will earn in a 4-hour shift, multiply her new hourly rate by the number of hours:

ext{Earnings} = 28.56 imes 4 = 114.24

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