learning the ratio and rates is super important
35 MPH(unit)
-> 35 miles per hour
35 miles / 1 hour
example
$12 / 1hour, 4,000,000babies/1year, 260calories/20 ounces of coke
150 miles / 3 hours = 50 miles / 1 hour -> unit rate
50 miles per hour
A unit rate is any rate where the value of the denominator is 1
pretzelicious: $3.50, 15ounces -> $0.23/ounce
pretztastic: $3.6, 18ounce -> 0.20/ounce