Ratios and rates
Josh has 15 pieces of wood. Amy has 3 pieces of wood. What is the ratio of the pieces of wood?
15:3 or 15 to 3
Write the fraction as a percent.
1 17/20
185%
What is the key word in this problem
There are 2 red crayons for every 3 blue crayons.
Every
What is the metric system?
The metric system is a decimal system of measurement, based on powers of 10, that contains units for length, capacity, and mass.
Walter has 6 T-shirts. Halter has 3 T-shirts. What is the unit rate of this problem?
2 T-shirts: 1 T-shirts
or
2 T-shirts to 1 T-shirt
What is a percent?
A percent is a part to hole ratio where the whole is 100. So, you can write a percent as a fraction with a denominator of 100.
What is the key word/words in this problem?
There are 8 ducks for each duck there are 5 cows.
Each, for
What is a conversion measure?
A conversion measure is a rate that equals one.
Birds 7
celebrity 14
dogs 5
What is the ratio of celebrity's to Birds
14 :7 or 14 to 7
What is 20% of 60?
12
What is a unit rate?
A unit rate compares one quantity to one unit of another.
If a car is going 80 kilometers how many miles is it going?
It is going 60 miles.
$28 saved in four weeks. What is the unit rate for this problem.
$7 saved in 1 week
What is 20% of 100?
20
What is the definition of equivalent rate?
The definition of equivalent rates are two unit rates that are equal.
How many feet is 1 yard?
Three feet.
228 students in 12 classes
What is the unit rate for this problem?
19 students in one class
Wright the percent as a fraction. simplify
224
2 12/50
What is a rate?
A rate is a ratio of two quantities using different units.
How many feet is in one mile?
5,280 feet