Rates
Which is the better buy, 3 pens for $1.32 or 5 for $2.50?
What is 3 pens.
1.32/3 = .44 each
2.5/5 = .5 each (.5 = .50)
Thirty buses can carry 1500 people. How many people can be carried by 5 buses?
What is 250 people?
30/1500 = 5/x
Is this a proportion? 45 miles/ 2 hours = 96 miles/ 4 hours
What is No?
45/2 = 90/4
Find the missing number in in the proportion:
6/x = 15/5
What is 2?
6/2 = 15/5
3 = 3
A model of a building has a scale factor of 1 cm equals 30 inches. If a room is 13 feet long, what size will it be in the model?
What is 5.2 cm?
Which is the better buy, 4 pens for $2.44 or 8 pens for $4.64?
What is 8 pens?
Two rectangles are in proportion. The smaller rectangle has a length of 8 cm. and a width of 6 cm. The larger rectangle has a width of 9 cm. and a length of ______cm.
What is 12?
Is this a proportion?
4.8 errors/ 3 pages = 3.4 errors/ 2 pages
What is No?
4.8 / 3 = 3.2 / 2
Find the missing number in in the proportion: 3/2 = x/27
What is 40.5?
The scale on a map is 1/2 inch equals 15 km. What distance is represented by 2 1/2 inch?
What is 75 km?
The expression 2n - 3 gives the number of tiles in row "n" of a pattern. How many tiles are in row 7?
What is 11 tiles?
2(7) - 3 =
14 - 3
Simplify this ratio:64 ounces/ 2 pounds
What is 2/1?
16 ounces = 1 pound
64o/2p = 32o/1p = 2p/1p
Two rectangles are proportional. The length of the larger rectangle is 18 cm. and the width is 6 cm. The length of the smaller rectangle is 12 cm. Find the width.
What is 4 cm?
18/6 = 12/x
Find the missing number in in the proportion:
8 / 10 = 6 / x
What is 7.5?
A 11-inch wide by 17-inch long document is to be reduced to a length of 8.5 inches. How wide will the document be?
What is 5.5 inches?
Find the unit rate if you are paid $90 for delivering papers for 6 days.
What is $15/1 day?
Bob is 25 in. tall. His brother is 2 1/4 times as tall. What is the height of the brother?
What is 56.25 inches?
25 x 2.25
On Fiona's map, the distance from her office to her house measures 3.5 in. The map scale is 1 in. = 16 mi. If Fiona drives back and forth, how many total miles will her round trip be?
What is 112 miles?
Find the missing number in in the proportion:
0.52 / 2 = x / 3
What is 0.78?
You drive 125 miles in 3 hours. How long will it take you to drive 400 miles if you go the same rate?
What is 9.6 hours?
Find the unit rate if a plane flies 2275 miles in 3.5 hours.
What is 650 miles/1 hour?
Simplify this ratio: The perimeter of rectangle A is 27 feet. The perimeter of rectangle B is 10 yards. What is the ratio of the perimeter of rectangle B to the perimeter of rectangle A?
What is 10/9?
10 yards / 27 ft. = 10 yards / 9 yards
Is this a proportion?
1.44/ 8 = 1.7/ 10
What is NO?
cross multiply
14.4 does not = 13.6
Find the missing number in in the proportion: 4.63/0.2 = x/4
What is 92.6?
A 3-ounce steak has 222 calories. How many calories are in a 8-ounce steak?
What is 592 calories?