This task is about expanding, simplifying, and changing the subject of the equation.
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A parking building charges $3 for parking up to 2 hours and an additional $2 for every hour (or part of an hour) after that.
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| a) |
What is the cost of parking
i) for 30 minutes? $ __________
ii) for 1 3/4 hours? $ __________
iii) for 4 hours? $ __________
iv) for 5 1/2 hours? $ __________
For cars parked longer than 2 hours, the cost of parking is given by the equation:
c = 3 + 2 (t - 2)Where: c is the cost in dollars
t is the time parked (in whole hours) |
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b) |
Expand and simplify c = 3 + 2 (t - 2)
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c) |
Make t the subject of the equation: c = 2 ( t - 2) + 3 |