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On each shift, a bus driver earns x dollars per hour for the

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CEO
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On each shift, a bus driver earns x dollars per hour for the [#permalink] New post 30 Nov 2007, 07:05
On each shift, a bus driver earns x dollars per hour for the first 8 hours worked and 1.5x dollars per hour for each hour over 8 hours. If the driver earns $475 for a week in which he worked 5 shifts, what is the value of x?

9
10
22
14
cannot be determined
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 [#permalink] New post 30 Nov 2007, 07:15
Not enough information - answer E cannot be determined.
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Re: Algebra - Bus Driver [#permalink] New post 30 Nov 2007, 07:39
bmwhype2 wrote:
On each shift, a bus driver earns x dollars per hour for the first 8 hours worked and 1.5x dollars per hour for each hour over 8 hours. If the driver earns $475 for a week in which he worked 5 shifts, what is the value of x?

9
10
22
14
cannot be determined


(8x +1.5xz(z is >8)*5 = 475
8x+1.5xz = 95

x(8+1.5z) = 95 thus x = 95 / (8+1.5z)

Cant be determined
Re: Algebra - Bus Driver   [#permalink] 30 Nov 2007, 07:39
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On each shift, a bus driver earns x dollars per hour for the

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