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.