precal question

Question

Wendy took a trip from one city to another, a distance of 470 mi. She traveled part of the way by bus, which arrived at the train station just in time for Wendy to complete her journey by train. The bus averaged 40 mi/h, and the train averaged 90 mi/h. The entire trip took 101

2

 h.

 How long did Wendy spend on the train?

Answer 1

t represents the time at 40 mph

10.5 - t represents the time at 90 mph

d = r · t·

40t + 90(10.5 - t) = 470

Can you solve for t and answer?

Answer 2

Is that 101 minutes?