Unit 5 vocabulary

Question 1

comparison by division of two quantities

Answer 1

A proportional comparison in

which one quantity can be described as a ratio of the other (ratio) 2 liters to 2,700 milliliters

Question 2

multiplicative comparison of two quantities

Answer 2

A proportional comparison in

which one quantity can be described as a multiple of the other (proportion) $! (increased by multiplying by 4)

Question 3

part-to-part comparison

Answer 3

The comparison of one part to another part (e.g.,

boys to girls)

Question 4

per

Answer 4

For each or for every

Question 5

percent

Answer 5

The ratio of a number to 100; per hundred

Question 6

positive rational number

Answer 6

the set of numbers that can be expressed as a

fraction, where a and b are counting (natural) numbers

Question 7

proportion

Answer 7

a mathematical sentence stating that two ratios are equal.

Question 8

-qualitative:

Answer 8

a broad subjective description (e.g., The speed of car A is slower than the speed of car B)

Question 9

-quantitative:

Answer 9

a narrowed objective description associated with a quantity (numbers) (e.g., The ratio of blue cars to red cars is 6:3; therefore, there are twice as many blue cars as red cars)

Question 10

-rate:

Answer 10

a ratio in which two quantities with different units of measure are compared (a multiplicative comparison of two different quantities where the measuring unit is different for each quantity; e.g., miles/gallon; feet/minute)

Question 11

-ratio:

Answer 11

a comparison of two quantities (a multiplicative comparison of two quantities)

Question 12

-scale factor:

Answer 12

the common multiplicative ratio between pairs of related data which may be represented as a unit rate

Question 13

-strip diagram:

Answer 13

a model or drawing that looks like a strip of tape; a strip

diagram is used to represent number relationships (a linear model used to illustrate number relationships)

Question 14

-unit rate:

Answer 14

A comparison of two measures with one term having a value of 1; may also be called unit price or unit cost (a ratio between two different units
where one of the terms is 1)

Question 15

part-to-whole comparison

Answer 15

The comparison of one part to the whole (total)

e.g., girls to all the students

Question 16

customary

Answer 16

the measurement system used most often in the United States (mile/yard/feet/inch; gallon/quart/pint/cup/fluid ounce; ton/pound/ounce)