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keiko works as a tutor for $8 an hour and a waitress for $9 an hour. This month, she worked a combined total of 100 hours at her two jobs. Let t be the number of hours keiko worked as a tutor this month. Write an expression for the combined total dollar amount she earned this month.​

User Lastnico
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1 Answer

3 votes

Answer:
T=800+t

Explanation:

You have the following information given in the problem:

- She works as a tutor for $8 an hour and a waitress for $9 an hour.

- The total hours she worked at her two jobs is 100 hours.

Therefore, have:


w=100-t (
w is the total of hours she worked at his job as a waitress)


T=8w+9t (
T is the total dollar amount she earned this month)

Substitute
w=100-t into the
T=8w+9t and simplify. Then, the expression asked is:


T=8(100-t)+9t


T=800-8t+9t


T=800+t

User ThisDarkTao
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