Ratio and Proportions Scaling

Find the unit rate.
Carrie can type 800 words in 12 minutes. How many words can she type per minute? 

• 66 ^2_/3

• 66

• 66 ^1/₂

Caleb can drive 15 miles in 60 minutes. How many miles can he drive in 12 hours? (Hint. Set up a proportion to solve problem).

• 360

• 180

• 48

A rate with the second number being one. Often has the word "per" in it.

• unit rate

• ratio

• proportion

scale factor

• A scale written as a ratio without units in simplest form

• A unit rate where the denominator is one unit.

• An equation that states that two ratios are equal

• Two ratios that describe the same relationship

scaling

• to multiply or divide two related quantities by the same number

• a table with columns filled with pairs of numbers that have the same ratio

• A rate with a denominator of one when simplified.

• A scale written as a ratio without units in simplest form

ratio

• A comparison of two quantities by division

• A technique of problem-solving that uses the units that are part of a measurement to help solve the problem

• to multiply or divide two related quantities by the same number

• A scale written as a ratio without units in simplest form

equivalent ratios

• Two ratios that describe the same relationship

• to multiply or divide two related quantities by the same number

• An equation that states that two ratios are equal

• A ratio comparing two quantities with different kinds of units

proportion

• An equation that states that two ratios are equal

• a table with columns filled with pairs of numbers that have the same ratio

• Two ratios that describe the same relationship

• A technique of problem-solving that uses the units that are part of a measurement to help solve the problem

A comparison of two quantities that uses division

• proportions

• scaling Down

• Ratio

• Scaling up

A visual model that represents the relationship between two quantities in a ratio.

• Double Number Line

• Graph

• Ordered Pairs

• Tape Diagram