Flashcards
Key Words - Ch. 2
Cards in this deck (8)
- 1Two-term ratioCompares 2 quantities measured in the same units.
Written as = a:b, a to b - 2Three-term ratioCompares 2 quantities measured in the same units.
Written as = a:b:c, a to b to c - 3Part-to-part ratioCompares different parts of a group to each other.
Ex. 10:8 is the part-to-prat ratio of brown to red beads - 4Part-to-whole ratioCompares 1 part of a group to the whole group.
Ex. 5:23 is the part-to-whole ration of blue to total number of beads - 5RateCompares 2 quantities measured in different units.
Ex. $1.69 per 100 g
$1.69/100 g - 6Unit rateA rate in which the second term is one.
Ex. 20 km/h
64 beats/min - 7Unit priceUsed when shopping. Often shown per 100 g or per 100 mL.
- 8ProportionA relationship that says that 2 ratios or 2 rates are equal.
Can be written as a fraction.
Ex. 2km/3h = 6km/9h