# Physics and Algebra Traveling Speed

1. Jeff rode his bike 45 miles to get to the park, and his co-worker Chris rode his bike 70 miles to meet Jeff at the park. Chris averaged 5 mph more than Jeff, and his trip took one-half hour longer than Jeff. How fast was each traveling?

2. Mike found a good deal on some golf clubs at an online auction site. The clubs were selling for $238 CAN. He wanted to find out if this was a good deal, so he check the newspaper to find out the current exchange rate. He saw that today the Canadian exchange rate was $1.00US to $1.52 CAN. If Mike decides to buy these golf clubs, how much will it cost in US dollars?

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#### Solution Preview

1. Jeff rode his bike 45 miles to get to the park, and his co-worker Chris rode his bike 70 miles to meet Jeff at the park. Chris averaged 5 mph more than Jeff, and his trip took one-half hour longer than Jeff. How fast was each traveling?

Sol: Suppose Jeff was traveling at x mph and Chris was traveling at y ...

#### Solution Summary

The physics and algebra in traveling speed is examined. The Canadian exchange rate for online auction sites are provided.