Toby: 2x-10

Rebecca: (2x-10)-8=2x-18

Total:2x-10+2x-18+x=157

5x-28=157

5x=185

x=<<37=37>>37 hours

Rebecca:2(37)-18=56 hours

# Answer

56
Question:
Thomas, Toby, and Rebecca worked a total of 157 hours in one week.  Thomas worked x hours.  Toby worked 10 hours less than twice what Thomas worked, and Rebecca worked 8 hours less than Toby.  How many hours did Rebecca work?
Answer:
Let's think step by step.

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56
Thomas, Toby, and Rebecca worked a total of 157 hours in one week.  Thomas worked x hours.  Toby worked 10 hours less than twice what Thomas worked, and Rebecca worked 8 hours less than Toby.  How many hours did Rebecca work?
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