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2-157.
  1. Jack and Jill Jill has a job like Jack’s except that she makes $10/hr after six hours. Homework Help ✎

    1. Find J(t), Jill’s earnings after t hours of work.

    2. Crown’s job pays $6/hr for the first 8 hours and then $12/hr after that. What is C(t), Crown’s earnings after t hours on the job?

    3. When will Jill make $46?

    4. Extension: When does Jill make more than Crown?

Use the same thinking as in (a) above.

You know that in 6 hours
Jill will have $30.
So 30 +10(t − 6) = 46.
Solve for t.

When is 30 + 10(t − 6) > 48 + 12(t − 8) AND 6t < 30 + 10(t − 6)?