This task is about calculations with linear equations.
| Tawera's Community Electrical use this equation to work out how much they will charge to fix a washing machine. | ||
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c = 30 + 28h c = the cost of repairs (in dollars) h = the time the repairs take (in hours). |
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| a) |
Alipate's machine took 3 hours to fix. How much did this cost? $___________
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| b) |
Wanda's machine cost $170 to repair. How many hours did this take?
Show all your working and then write your answer in the box.
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