If 5 pairs of socks cost $15, how much
does 11 pairs of socks cost?
Step 1 Write Equivalent Rates
Step 2: Find the unit rate of the given rate.
Method 1
Unit Rates
Step 3: Multiply top and bottom by same number
x 11
x 11
Method 2
Multiply or
Divide
Top and
Bottom
Eli is making guacamole. He uses 2
tablespoons of cilantro for every 3
avocados. At this rate how many
tablespoons of cilantro are needed for
9 avocados?
$55 for 11 pairs of socks
Step 1- Write Equivalent Rates
Step 2: multiply or divide top and bottom by same number
x3
x3
T = 6 tablespoons
Method 3
Cross Products
Eli is making guacamole. He uses 2
tablespoons of cilantro for every 3
avocados. At this rate how many
tablespoons of cilantro are needed for
9 avocados?
Step 1- Write Equivalent Rates
Step 2- Cross multiply
2 · 9 = 18
18 ÷ 3 = 6 tablespoons