Lets say I can buy 200 of something for $20. but for $60, I can buy 750 of them. How can I quantify the money saved as cost per unit?
Lets say I can buy 200 of something for $20. but for $60, I can buy 750 of them. How can I quantify the money saved as cost per unit?
This right here answers your own question. The word “per” implies division in math. Cost per unit = cost divided by units. If cost is $20, and units is 200, that means you have $20 / 200 = $0.10.
Similarly, 150 miles per 2 hours is 150 miles / 2 hours = 75 miles / 1 hour = 75 miles per hour
Other math vocabulary hints: and means addition (3 and 5 is 8) and of means multiplication, typically with a fraction (half of 6 = 1/2 * 6 = .5 * 6 if you prefer = 3