rates and unit rates wanna do some math today?? of course i do!! math is the best subject ever!!!!
TRANSCRIPT
Rates and Unit Rates and Unit RatesRates
Wanna do some math
today??
Of course I do!! Math is
the BEST subject ever!!!!
Rate: ratio that compares two quantities measured in different units.Unit rate: rate with a denominator of one.
What are some examples of unit rates?
Speed (miles per hour)
Wage (dollars per hour)
Price (dollars per pound)
Copy CenterColor Copies
1 copy -- $0.25
10 copies -- $1.50
25 copies -- $2.50
50 copies -- $4.50
100 copies -- $6.00
What is the unit rate for 10 copies?
10
50.1$
÷ 10
÷ 10
1
15.0$=
The unit rate for 10 copies is $0.15.
Copy CenterColor Copies
1 copy -- $0.25
10 copies -- $1.50
25 copies -- $2.50
50 copies -- $4.50
100 copies -- $6.00
What is the better deal, 1 copy for $0.25 or 10 copies for $1.50?
The unit price for 10 copies is $0.15.
The unit price for 1 copy is $0.25.
Therefore, the 10-copy
price is a better deal.