Are these proportional
2/4, 30/60
Yes
Ms. Madden runs 10 miles in 5 hours, how far does she run in 1 hour?
2 miles per hour
2/5 = c/15
c = 6
A comparison between 2 quantities
Ratio
1/5, 10/25
No
Grace bought 5 donuts for $15. How much for 1 donut?
$3 per donut
10/m = 2/5
m = 25
a ratio of 2 quantities with different units
Rate
15/5, 9/3
Jacob tells 28 jokes in 7 days. How many jokes does he tell in 1 day?
4 jokes in one day
g/6 = 4/8
g = 3
A rate with one in the denominator
unit rate