Definitions
Unit Price
the cost of a single unit of a product
Jenn has 19 comic books
She sells 7
and buys 3
how many does she have?
15
21/35
3/5
-11+-3=
-14
1/3 x 5/8 =
5/24
rate
ratio that compares 2 quantities with different units of measure
Jenn is baking a cake.
The recipe calls for 1/2 cup of flour. She only has a 1/4 measuring cup.
How many 1/4 cups = 1/2 cup?
2
66/88
6/8
-8 x -6 =
48
1/3 + 1/2 =
5/6
Equivalent Ratios
ratios that have different numbers but represent the same relationship
Julia is driving to Hartford. She is driving 60 mph. Hartford is 120 miles away. How many minutes will it take her?
120 minutes
9/27
1/3
-60 ÷ -6 =
10
1/2 - 3/4 =
-1/4
Unit Rate
Comparison between x units of one quantity to 1 unit of another quantity
Ralph is planning to buy apples.
At the grocery store there is a 5lb bag for $9 or singular apples for $1.99 per pound.
5lb bag for $9 = $1.80/lb
1.99/lb
1.99/lb is cheaper
9/27
1/3
-15 - 8 =
-23
2/5 ÷ 1/4 =
8/5
Ratio
Relationship in which for every x units of one thing there are y units of another quantity
Craig is driving to Portland. He is traveling at 45 mph. Portland is 320 miles away. How many minutes will it take him?
426.7 minutes
40/64
5/8
-81 ÷ 9 =
-9
5/8 - 2/3 =
-1/24