The graph represents different classmates times to travel 279 feet 10.5 inches on a moving walkway.
TIME IN MIN & SEC TIME IN SECONDS VARIANCES (TIME - AVERAGE TIME)
2 17.780 137.780
-0.406
2 18.700 138.700
+0.514
2 18.400 138.400 +0.214
2 18.290 138.290 +0.104
2 18.150 138.150 -0.036
2 18.710 138.710 +0.524
2 17.435 137.435 -0.751
2 18.105 138.105 -0.081
2 18.340 138.340 +0.154
2 17.990 137.990 -0.196
2 18.150 138.150 -0.036
TOTAL 1,520.050 +0.004
Average time = total seconds/number of times = 1520.05/11 = 138.186
--------- To find the average rate for the class use the formula: distance=rate(time) or rate=distance/time. Distance of the walkway=284ft. 9.5in. To convert feet to inches take 284ft(12)in.=3408+9.5in.=3417.5in. The classes average time was 138.186sec. Since Rate=distance/time Take R=3417.5in./138.186sec. Rate=24.73inches per second To Convert back to feet divide by 12 since there are 12 inches in 1 foot. Rate would then =2.06ft. per sec.
Another example of rate=distance/time. Rate for Mr. Thayer's time. Thayer's time=2min.18.15sec. or 138.15sec. Distance =284ft.9.5in. or 3,417.5in. Rate=3,417.5in./138.15sec. Rate=24.74inches per sec. or Rate=2.06feet per second
For more information and ideas about this project you may link to a page written by one of the following math artists: Danielle, Darlene, Kellie, Jill, Nanyal, Kevin, Crystal, Rachel, Christina, Jennifer, Candice's First and Third Web Page, Vincent, Esther and Melinda. Most of us are in this picture but not in order of names.