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Practice 2 Kerry’s Motorbike

Practice 2 Kerry’s Motorbike. 1. 4 x 1.5 = 6 Kerry works 6 hours on weekdays 2pm to 6pm Kerry works 4 hours on Saturday. 1 Mark for either. 2. 10.50 x 6 = 63 Kerry earns $63 for her weekday work. 1 Mark. 2. 20% of 10.50 20 ÷ 100 x 10.50 = 2.1

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Practice 2 Kerry’s Motorbike

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  1. Practice 2Kerry’s Motorbike

  2. 1 4 x 1.5 = 6 Kerry works 6 hours on weekdays 2pm to 6pm Kerry works 4 hours on Saturday 1 Mark for either

  3. 2 10.50 x 6 = 63 Kerry earns $63 for her weekday work. 1 Mark

  4. 2 20% of 10.50 20 ÷ 100 x 10.50 = 2.1 Kerry earns an extra $2.1 per hour on the weekend. 10.50 + 2.1 = 12.6 Kerry earns $12.60 per hour on the weekend. 1 Mark

  5. 2 12.60 x 4 = 50.4 Kerry earns $50.40 for her work on the weekend. 50.4 + 63 = 113.4 Kerry earns $113.40 for a whole week’s work. 1 Mark

  6. 3 12% of 113.4 12 ÷ 100 x 113.4 = 13.61 Kerry pays $13.61 tax 113.4 – 13.61 = 99.79 Kerry gets to keep $99.79 per week 1 Mark

  7. 4 ¾ of 99.79 3 ÷ 4 x 99.79 = 74.84 Kerry saves $74.84 per week 1 Mark

  8. 5 2070 ÷ 1.15 = 1800 The price of the motorbike without GST is $1800 1 Mark

  9. 6 Kerry pays 5/6 of the price. 5 ÷ 6 x 1800 = 1500 Kerry must pay $1500 of the motorbike’s price. 1 Mark

  10. Merit Kerry needs to save $1500 Kerry saves $74.84 per week 1500 ÷ 74.84 = 20.04 It takes Kerry 20.04 weeks to save enough money. After 20 weeks she has nearly enough money. She will have enough money after 21 weeks.

  11. Excellence The excellence mark can be earned in a variety ways. It depends on how you interpret the question. Each test will be marked separately on a ‘case-by-case’ basis.

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