4.3+Solving+Problems+with+Rates

feburary 8, 2009 Block C G.A

 Comparing and Scaling Big Idea Many important practical and mathematical applications involve comparing quantities of one kind or another; it is important to know which method to use and how we should use them.

__ Investigation 4: Comparing by Finding Rates __  __  Essential Question: __ __//    What methods are there for comparing things?

//__      **4.3 solving problems with rates A. make a graph showing Sascha's total distance traveled over time. Use 5-minute time intervals** **on the x-axis.** He traveled 27.48 miles per hour. I got the answer by taking the amount of miles and dividing them by 60. Then I multiplied that answer //by the amount of minutes that Sascha went during that interval.
 * B. How far did Sascha travel in his 1-hour ride? Explain**.

It would take me about 2 hours, becuase 13 divided by 60 = 0.216 x 120 = 26 miles, so it would take you about 2 hours.
 * C. If you could maintain a steady speed of 13miles per hour on a bike, how long would it take you to travel the same distance Sascha traveled in 1 hour ride?**

You would have to go about 27 miles per hour the whole time.//
 * D. If you were racing Sascha, what constant (steady) speed would you have to maintain to tie him?**