Wednesday, October 10, 2007

Renting Bicycles

Finish 2.1 on page 31 if you did not do so in class.

Homework:

#3-4 pages 36-37
#15-16 page 42

Optional: #20-21

This week's POW: Due Monday!

On Monday, October 8th, 2007 we celebrated Indigenous Peoples Day. This is also the day that Columbus is credited with opening the doors for European expansion in the America’s when he mistakenly landed on San Salvador while trying to find an alternate route to Asia. Columbus hypothesized that instead of sailing south and then east around the tip of Africa, he could just sail southwest and get to Asia more easily. When Columbus was planning this voyage he packed provisions based on his calculations of the Earth’s size. Unfortunately, he did not realize that the map he was using was in an Arabic unit of measure and not in the Italian unit of measure he thought. As a result, he calculated the Earth’s circumference to be 25,255 km when it is really 40,008 km. By what percent was his calculation incorrect? Express your answer to the nearest whole number.

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