Do these ratios form a proportion? Why or why not?
4/12 and 3/9
Yes because they both simplify to 1/3, or because 4 x 9 = 36 and 12 x 3 = 36
100
A 4.5 ounce bag of chips costs $1.35. What is the cost of the chips per ounce?
$0.30 per ounce
100
A wrapping maching can wrap one candy bar in four seconds. How many bars can be wrapped in five minutes?
300 bars
100
3 pounds of bananas cost $1.80. How much would 8 pounds of bananas cost?
$4.80
100
If you spend 1.5 hours per day doing homework, how many hours would you spend doing homework in 8 days?
12 hours
200
Find the missing number in the proportion.
10/3 = x/5
16 2/3 or 16.6 (with a line over the last 6 to show that it repeats :) )
200
Jacob travels 198 miles in 5.5 hours. What is his unit rate in miles per hour?
36 mph
200
The official length for a marathon race is 26.2 miles. How many feet long is a marathon?
138,435 feet
200
Four pounds of apples cost $4.16. How much would five pounds of apples cost?
$5.20
200
Mrs. Peters has a 24-inch kitchen shelf where she stores different spices. The spices are kept in small tin boxes, each 1.6 inches in length. How many of these boxes of spices can fit on the shelf?
15 boxes
300
At the middle school dance, the ratio of girls attending to boys attending was 5 to 4. There were 250 girls attending the dance. How many boys were there? Set up a proportion and solve.
200 boys
300
A classroom has 92 desks in four classrooms. What is the unit rate for this situation?
23 desks per classroom
300
The fastest time for a marathon rate was set in 1999. The runner completed the race in 7542 seconds. What is the record in minutes?
125.7 minutes
300
The cost of 5.6 pounds of peaches is $11.29. How much would 3.2 pounds cost? Set up a proportion and solve.
$6.45
300
Steve's et parakeet is 100 mm tall. It casts a shadow that is 250 mm long. A cockatiel sitting next to the parakeet casts a shadow that is 450 mm long. How tall is the cockatiel?
180 mm
400
The cost of 3 candles is $10. What is the cost of 5 candles?
$16.67
400
Maria used 5 1/2 gallons of paint to paint 7 rooms. What is the unit rate in gallons of paint per room?
11/14 of a gallon of paint per room
400
2 tons = ______ oz
64,000 oz
400
Brennan's car used 2 liters of oil on a 1,200-kilometer trip. How many liters of oil can he expect to use on a 1,700 kilometer trip? Express your answer as a fraction.
2 5/6 liters of oil
500
How many centimeters are in 3.5 feet, given that 1 inch is about 2.54 cm?
106.68 cm
500
Jeremy drank 1 1/2 pints of milk in 20 minutes. How many fluid ounces of milk did he drink per minute?
1.2 fluid ounces per minute
500
72 fl oz = ___ cups
9 cups
500
2 2/3 yards of ribbon cost $4.00. How much would 5 feet cost?