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Home > PC > Chapter 2 > Lesson 2.3.7 > Problem 2-157

2-157.

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)?