Rates
$253 for 20 hours. Find the unit rate.
$12.65 per hour
Are these proportional?
9/54, 26/156. 48/288
yes
For every person who actually has the flu, There are 6 people with flu-like symptoms resulting from a cold. If a doctor sees 40 patients, determine how many of these you would expect to have a cold.
34
A 12-ounce bottle of shampoo lasts Bob 16 weeks. How long would an 18-ounce bottle of shampoo last him?
24 weeks
36 kg in 30 weeks. Find the Unit Rate.
1.2 kg per week
Are these proportional?
1/11, 5/43, 20/163
no
A certain vehicle can travel 483 miles on 14 gallons of gasoline. Determine how many gallons of gasoline this vehicle will need to travel 600 miles. Round to the nearest tenth.
17.4 gallons
A shop makes 39 wet suits every 2 weeks. How long will it take the shop to produce 429 wet suits?
22 weeks
482 students to 20 teachers. Find the unit rate.
24.1 students per teacher
Chart #1
No.
After 2 hours the air temperature had risen 7 degrees. Write and solve a proportion to find the amount of time it will take at this rate for the temperature to rise an additional 13 degrees.
3.7 hours
A patio door is 6 feet wide. If a drawing of the door is made with a scale of 2 in. =3 ft, what is the width of the door on the drawing?
4 inches.
159 miles in 6.5 gallons. Find the unit rate.
24.5 miles per gallon
Chart #2
yes
Recycling 2000 pounds of paper saves about 17 trees. Write and solve a proportion to determine how many trees you would save by recycling 5000 pounds of paper.
42.5 trees
A map has a scale of 3.5 inches = 20 kilometers. If the distance between two cities on the map is 4.9 inches, what is the actual distance between the cities?
28 Kilometers.
850 people enter the zoo between the hours of 8 am and 2 pm. What is the unit rate?
142 people per hour
Chart #3
No
During a blood drive the ratio of Type O donors to non-type O donors was 37:43. About how many type O donors would you expect in a group of 300 donors?
139
For every student that fails the math test there are 6 that pass. In a class of 28 students, how many will pass the test?
24 students will pass.