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Math 96
Chapter 6.7 (Applications of Rational Expressions)
4
Mathematics
Undergraduate 3
03/11/2012

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Cards

Term
Set up an equation to solve the following problem
Definition
  • The numerator of the fraction is increased by (an amount) or (x), so that the result is equal to .... Just add in the nominator.
  • The denominator is 3 less than the numerator. If 1 is added to both the numerator and the denominator, the result is .... Just add then find the common denominator, do the operation and check.  
Term
Problem involving race car, plane (speed)
Definition

Formula = Miles/hour means that distance/time = rate or r = d/t

Time = distance/rate

Term
The speed of a boat in still water
Definition

Upstream = rate - x  

Downstream = rate + x

Distance/Rate = time

Term
When 2 things work at a different rate
Definition
  • Rate = distance/time
  • Example: x divided by 1/3 (3hours) = 1/3x

 

 

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