Rates, Ratios, Proportions Test

a ratio of two quantities with different units

• ratio

• rate

• unit rate

a rate with a denominator of 1

• ratio

• rate

• unit rate

Find a unit rate...

• 15 students to 2 teachers

• 120 feet to 2 mins

• 5 fish to 1 cat

 $\frac{5}{3}=\frac{x}{9}$  Use cross products to solve

• 21

• 15

• 45

Find the unit rate:

16oz for every 2 hours

• 16oz per hour

• 8oz per hour

• 32oz per hour

 $\frac{b}{25}=\frac{5}{1}$  

Solve:

• 5

• 100

• 1

On Saturday, you make 6 goals in 30 minutes. On Sunday, you make 8 goals in 45 minutes. Are these rates proportional?

• Yes

• No

 $\frac{24}{10}$  When you write a ration as a fraction you can simplify it.
Simplify the fraction above.

• 2 $\frac{2}{5}$  

• 12 $\frac{12}{5}$  

• 2

 $16\ mi=$  
1 mile is 0.62km

• 10 km

• 7 km

• 9.92 km

 $15\ cm\ =\ \ \ \ \ \ \ \ \ in$  1 cm is 0.39 in.

• 6 in

• 5.85 in

• 6. 65