Alg. 4.1 Ex. 1 & 6
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Transcript of Alg. 4.1 Ex. 1 & 6
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Agenda Wed. Dec. 9
homework 13 p. 185 # 1 - 6, 11 - 13, 32 - 40
Correct homework
Ch. 4-1 Ex. 1 & 6 Unit Rates, Conversions & proportions
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Move the blocks to fill in the blanks with our new terms.
A ____________ is a ratio that compares two units.
A _____________ is a _____________ per one given unit.
Rate
Unit Rate Rate
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8.5 8.5 1=..
Converting a rate to a unit rate
The space shuttle Endeavor climbed 71 miles in about 8.5 minutes. Let's look at the shuttle's
rate of ascent.
71 miles8.5 minutes
Rate Unit Rate
8.4 miles1 minute
71 8.5 8.4=.. ?
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Change miles to ____________
Making TWO changes
The shuttle orbits at 17,400 miles/hour. What is the rate in feet per second?
Change hour to ____________
Feet
Second
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What known rate can you use to convert hour to second?
17,400 miles1 hour
X =1 hour
3600 seconds
1 hour
3600 seconds60 seconds1 minute
X60 minutes
1 hour=How did I get that
rate?
4.83 miles
1 second
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What known rate can you use to convert miles to feet?
4.83 miles1 second
X =5280 feet
1 mile
25,502 feet
1 second
17,400 miles1 hour
25,502 feet
1 second=So, that
means...
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