4.1
Find the unit rate for number of parts manufactured per hour if 1530 parts are made in 5 hours
306 parts per hour
3/10 = 12/ X
40
You roll a blue number cube and a red number cube.
P(blue even and red even)
1/4
68 is 78% of what number
87.2
#1
5
A 14- oz of water costs $ 1.44. What is the cost per ounce?
$0.10 per oz
X + 14 / 6 = 3/4
x = -9.5
You roll a standard number cube. Find P(number greater than 2)
2/3
60% of 20 is what number
12
#3
6
140 seconds = ____ minutes
2.3 min
School guidelines require that there must be at least 2 chaperones for every 30 students going on a school trip. How many chaperones must there be for 80 students
x= 5.3
would need 6 chaperones
You toss a coin and roll a number cube. Find P( heads and an even number)
1/4
What percent of 20 is 15
75
#2
36
90 mi/hr = _______ ft/min
7920 ft/min
A map has a scale of 1cm : 10 km. Two cities are 2.5 cm apart on the map. To the nearest tenth of a kilometer, what is the actual distance corresponding to the map distance?
25 km
Suppose you choose a marble from a bag containing 2 red marbles, 5 white marbles, and 3 blue marbles. You RETURN the first marble to the bag and then choose again. Find P( white and blue)
3/20
Find the percent of change from $38 to $65
71.1% increase
#5
5
A van travels 220 miles on 10 gallons of gas. Write and solve a proportion to find how many gallons the van needs to travel 550 miles
25 gallons
Two rectangles are similar. One has a length of 10cm and a width of 8cm, and the other has a width of 7cm. Find the length of the second rectangle. Round to the nearest tenth
8.8 cm
A tree cast as shadow 12 ft long. A boy standing next to the tree casts a shadow 2.2 ft long. If the boy is 5 ft tall, how tall is the tree?
27.3 ft
The circulation of a newsletter decreased from 5100 to 3140. Find the percent of decrease in circulation to the nearest percent
38%
#4
80