Topic 13 Definitions
Ratios
Percents
Name 2 Other Values
Topic 14 Definitions
100
What is Ratio?
Is used to compare unlike quantities.
100
Ramon read 12 pages in 20 minutes. At this rate, how many pages can he read in 30 minutes.
18 pages.
100
18% of 100
18
100
Write this value in 2 other ways. 7/8
0.875 and 87.5%
100
What is Precent?
A special kind of ratio in which the first term is compared to 100.
200
What is Unit Rate?
A ratio in which one of the terms is 1 unit.
200
Elephants can charge at speeds of 0.7 kilometers a minute. Use a proportion to find this speed in kilometers an hour.
42 kilometers per hour.
200
126% of 200
63
200
Write this value in 2 other ways. 1/3
33.3% and 0.33
200
What is a decimal?
A number with one or more numbers to the right of the decimal.
300
What is Common Factor?
A factor that is the same for two or more numbers.
300
A cashier sells 7 DVDs for every 3 CDs she sells. How many CDs does the cashier sell if she sells 35 DVDs?
49 CDs.
300
78% of 340 Round to Nearest Whole Number.
265
300
Write this value in 2 other ways. 1/10
10% and 0.1
300
What is Ratio?
Can be written as x to y, x:y, or x/y.
400
What is Scale?
The ratio of the length in a drawing to the length of the real thing.
400
Anne's family drove 165 miles in 3 hours. At this speed, how long would it take them to drive 825 miles?
15 hours.
400
60% of 369
221.4
400
Write this value in 2 other ways. 3/4
75% and 0.75
400
What are Proportions?
A mathematical statement that two ratios are equal.
500
What are Scale Drawings?
The dimensions of an object are reduced or enlarged by the same ratio or scale.
500
Alberta found that 6 cars passed her house in 5 minutes. At this rate, how many cars would you expect to pass her house in 2 hours?
144 cars.
500
15% of 125
106.25
500
Write this value in 2 other ways. 345/1000
0.345 and 34.5%
500
What is Fraction?
A number that can be used to describe as a whole.
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