Day 4 Unit Rate and Dimensional Analysis Notes Completed.notebook
November 05, 2012
If the two quantities in a ratio are measured in different units, then the ratio of a to b is called a rate. Def: A unit rate is a rate with a denominator of 1. Oct 14­12:14 PM
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Day 4 Unit Rate and Dimensional Analysis Notes Completed.notebook
November 05, 2012
Main Street Florist sells two dozen roses for $24.60. Flowers First sells half a dozen roses for $7.50. Calculate unit rates to determine which shop has the better buy.
Oct 14­12:32 PM
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Day 4 Unit Rate and Dimensional Analysis Notes Completed.notebook
November 05, 2012
Starting at the town of Euler and traveling 40 miles to the town of Pythagoras, Xander travels at a rate of 2 miles every 15 minutes. What is his unit rate in miles per hour?
Returning from Pythagoras to Euler, Xander travels 2 miles every 3 minutes. What is his unit rate in miles per hour? Oct 14­12:43 PM
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Day 4 Unit Rate and Dimensional Analysis Notes Completed.notebook
November 05, 2012
We can use dimensional analysis when converting from one unit to another. Recall the identity property of multiplication:
Ex 3: a. Cole Hamels can pitch a baseball at 90 miles per hour. How fast is this in feet per second? Identify the conversion factors.
Oct 14­12:32 PM
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Day 4 Unit Rate and Dimensional Analysis Notes Completed.notebook
November 05, 2012
A cheetah ran 300 feet in 2.92 seconds. About what was the cheetah's average speed in miles per hour?
A sloth travels 0.15 miles per hour. Convert this speed to feet per minute.
Oct 14­12:36 PM
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Day 4 Unit Rate and Dimensional Analysis Notes Completed.notebook
November 05, 2012
What is the conversion factor for each situation:
1. inches to feet
2. feet to yards
3. ounces to pounds
4. pints to cups
5. fluid ounces to cups
Nov 4­2:29 PM
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