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Year 10 are organising a school dance. The DJ says he will charge $110 to set up his equipment and then $90 an hour (h). They have budgeted $470 to pay for the DJ. |
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| a) | i) |
Write an expression or equation that describes the DJ's charges.
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| ii) |
Work out how long the DJ will play for if Year 10 have $470 to spend.
The DJ will play for __________ hours.
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| b) |
Each ticket to the dance has a lucky number on it. Nick multiplies his number by 4 and takes 1 off and gets an answer of 67. |
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| i) |
Write an equation for this information. Use n to represent his lucky number.
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| ii) | Nick's lucky number is __________. | |