Ratios
It costs $35 for 6 pairs of socks. Find the unit rate
$5.83 per pair of socks.
A dozen bagels costs $7.80. Find the unit rate.
$0.65 per bagel
A 20oz bottle of soda costs $1.80. Find the unit rate
$0.09 per ounce
Which is a better buy?
A 5lb bag of apples for $3.80.
A 3lb bag of apples for $2.25
The 3lb bag is cheaper by $0.01 per pound
Find the better buy
12 car washes for $100
5 car washes for $45
12 car washes is cheaper by about $0.67 per wash