Math Forum - Problems Library - Pre-Algebra, Ratio and Proportion: Rate

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 ratio and proportion
 checkmarkrate
  scale factor

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Rate
Problems which deal with rate as a scale factor, and not so much d = rt.

Related Resources
Interactive resources from our Math Tools project:
   Math 7: Ratio and Proportion
The closest match in our Ask Dr. Math archives:
   Middle School: Ratio and Proportion
NCTM Standards:
   Number and Operations Standard for Grades 6-8

Access to these problems requires a Membership.

Downloading Duel - Suzanne Alejandre
Pre-Algebra, difficulty level 2. Whose downloading task should take longer? ... more>>

The Gates - Suzanne and Richard Alejandre
Pre-Algebra, difficulty level 3. How much time did Suzanne spend walking on "The Gates" pathway? ... more>>

He Ate It All! - Mr. Marthinsen's Geometry Class
Pre-Algebra, difficulty level 3. The professor ate an entire pizza in 28 minutes. Figure out the size of the pizza. ... more>>

New Home for Fibonacci and Fractal - Judy Ann Brown
Pre-Algebra, difficulty level 2. Determine how long it will take Jimal and Leslie to fill the new 15-gallon aquarium. ... more>>

Peeling Potatoes - Terry Trotter
Pre-Algebra, difficulty level 2. How many potatoes did Annie and Steve have to peel? ... more>>

A Pound of Valentine's Chocolates - Suzanne Alejandre, Claire Mead
Pre-Algebra, difficulty level 2. How long should a one pound box of chocolates last if Isolde eats it alone? ... more>>

A Snowy Driveway - Claire Mead
Pre-Algebra, difficulty level 3. Usually Bertha and Gertrude shovel snow together. How long would it take Bertha to shovel the same amount alone? ... more>>

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