Unit Rate
Find the unit rate.
- $8.00 for 5 boxes
$1.60 for 1 box
Which ratio does not belong with the other three? Explain your reasoning.
1/5, 3/15, 7/35, 8/45
8/45
Solve the proportion.
5/12 = x/36
x=15
3 large pizzas cost $13.50. How much does it cost to buy 10 large pizzas?
10 large pizzas cost $45.00.
It took Danika 7 hours to travel 441 miles. What is her average speed in mph?
63 mph
Find the unit rate.
$4.56 for a 12 eggs.
$0.38 for 1 egg.
Tell whether the ratios form a proportion.
6/30, 10/60
Not a proportion.
Solve the ratio.
8:12 , x:180
x=120
There are 180 white lockers in school. There are 3 white lockers for every 5 blue lockers. How many lockers are there in the school?
180 white lockers and 300 blue lockers. So there is 480 lockers total.
How long will it take for a car to travel 560 miles at an average speed of 35 mph?
16 hours
Find the unit rate.
364 km in 4 hours.
91km/hour
The ratio of girls to boys in a classroom is 3:5. If there are 6 girls in the class, how many total students are there?
16 students
You can peel 4 potatoes in 10 minutes. How long will it take you to peel 18 potatoes?
Peeling 18 potatoes will take 45 minutes.
You are 6 years old, your cousin is 8 years old. As you grow older, is your age proportional to your cousin’s age. Justify your answer with an example and explain your reasoning.
As you and your cousin grow older your ages are not proportional.
Reason: Not Multiplicative.
Ojas traveled 84.7 miles in 5 hours and 30 minutes. What was his average speed in mph?
15.4 miles per hour
Aashrith buys 4 tires for $272.00. What is the price of 3 tires?
Solve by finding the unit rate.
$204 for 3 tires.
What is the ratio as a fraction in simplest form.
63:28
9/4
Sia is making ice cream. She is using the recipe below. It serves 4.
> 300 ml cream > 120 g sugar
> 320 ml milk > 4 egg yolks
How much of each ingredient would Sia need to make ice cream for 3 people?
225 ml cream
90 g sugar
240 ml milk
3 egg yolks
An oil spill spreads 30 square meters every 1/6 of an hour. How much area does the oil spill cover after 2 hours?
360 square meters.
A bus travels 130 miles at an average speed of 50 mph and another 132 miles at an average speed of 55 mph. How many hours does it take the bus to make this trip?
5 hours
Shikha gets 5 movie tickets for $36.25. What is the cost of 8 movie tickets?
$58.00 for 8 movie tickets.
At 8:00 am you have 12 GB of a game downloaded. At 8:45 am you have 102 GB. What is the download rate in GB per minute?
2 GB per minute.
Nathan makes 15 free throws for every 5 that he misses. How many shots did he make if he shot 160 free throws?
120 made if Nathan takes 160 total free throws.
The ratio of girls to boys in the 6th grade is 6 to 7. How many girls are there if there are 364 total students?
168.
6 + 7 = 13 boys and girls in total in simplest form
364 / 13 = 28 or 13 x 28 = 364 (what happened to 13 to make it 364)
To keep it in proportion do the same with 6 (the number of girls)
6 x 28 = 168
Reese rode her bicycle for 3 hours and 15 minutes at an average speed of 14 miles per hour. How far did she ride?
45.5 miles