### 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 6*t* < 30 + 10(*t* − 6)?