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

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Joined: 21 Jan 2007
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On each shift, a bus driver earns x dollars per hour for the [#permalink]

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30 Nov 2007, 08:05
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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 Manager Joined: 20 Jun 2007 Posts: 157 Followers: 1 Kudos [?]: 16 [0], given: 0 [#permalink] ### Show Tags 30 Nov 2007, 08:15 Not enough information - answer E cannot be determined. SVP Joined: 05 Jul 2006 Posts: 1524 Followers: 5 Kudos [?]: 258 [0], given: 40 Re: Algebra - Bus Driver [#permalink] ### Show Tags 30 Nov 2007, 08:39 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, 08:39
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