Statistics and Probibility
A bag contains 5 red marbles and 3 blue marbles.
What is the probability of picking a red marble?
5/8
Diego writes 6 poems per week. Write an expression to show how many poems he will write in (w) weeks
6w
A train travels 360 Km in 4 hours. What is the unit rate or how fast is the train traveling per hour?
90 km per hour
A rectangular prism has:
Length = 6 cm
Width = 4 cm
Height = 3 cm
Find the surface area
108 cm squared
Which of the following numbers are on opposite sides of zero on a number line?
a. 0 and 2
b. 4 and 3
c. 5 and 6
d. -7 and -8
5 and -6
A barber cut peoples for a week and records how many hair cuts he does each day. Which best describes the spread of the barbers data?
Mean
Median
Mode
Range
range
What is an expression that is equivalent to
40a-16b
4(10a-4b)
or
8(5a-2b)
A farmer is planting carrot seeds and pepper seeds for his garden. For every 60 carrot seeds he plans 12 pepper seeds. What statement is true?
a. The ratio of pepper seeds to carrot seeds is 60 to 12 because 60 pepper seeds are planted for every 12 carrot seeds.
b. The ratio of pepper seeds to carrot seeds is 60:12 because there are always 48 fewer carrot seeds and pepper.
c. The ratio of pepper seeds to carrot seeds is 12:60 because 12 pepper seeds are planed for every 60 carrot seed.
d. The ratio of pepper seeds to carrot seeds is 12:60 because there are always 48 fewer pepper seeds planted than carrot seeds.
c
Jana drew a parallelogram with the height of 8 in and the base of 6 +3 inches. What is the area of the figure?
72 in squared
A student wrote this word expression: The quotient of four cubed and three to the fourth power.
How would you write that using numbers?
4^3 divided by 3^4
Find the mean of the data set
880
1050
995
1215
1320
1092
What is the value of Y in 6y-18= 42
10
In 1999, the US Postal Service sold 15 stamps for $4.95. In 2018, the US Postal Service sold 12 stamps for $6.00.
What is the unit rate, in dollars, per stamp for each year?
1999: 0.33 cents
2018: 0.50 cents
A rectangular prism has:
Length = 8 cm
Width = 3 cm
Height = 5 cm
Find the volume.
120 cm squared
A store received a shipment of the following items:
256 cans of soup
1,632 eggs
A store clerk will arrange the cans of soup in 4 rows. How many cans of soup can the clerk arrange in each row?
64
Mean, Median, Mode, Range
12, 15, 18, 12, 20, 15, 30
Find all four measures.
Mean: 17.43
Median: 15
Mode: 12 and 15
Range: 18
5y+4
Emily has a bag of dog food. The bag contains 24 3/4 cups of dog food. Emily feeds her dog 2 3/4 cups a day. How many days can she feed the dog from this bag?
9 days
A gift box is a rectangular prism with:
length 12 in, width 8 in, and height 5 in
a) find the surface area of the box
b) if wrapping paper costs $0.05 per square inch, how much will it cost to wrap the box?
A). 392 in squared
B.) $19.60
which expressions are equivalent to 2(9x+10y)
a. 11x+12
b. 18x+20y
c. 2(9x) +2(10y)
d. 2(19xy)
b, c
The average (mean) of five numbers is 18.
Four of the numbers are 12, 20, 15, and 23.
What is the fifth number?
20
What is the value of this expression
(5^2-7) + 4^3 divided by 8
25
A faucet fills 18 liters of water in 3 minutes. At this rate, how much water will it fill in 10 minutes?
18 divided by 3 = 6 liters per minute
6x10= 60 liters
A rectangular tank measures 6 m x 3 m x 2m
A. find the volume
B. If the tank loses water at a rate of 12m cubed, how long until it is empty?
a. v= 36 m cubed
b. 36 divided by 12= 3 hours
true or false
0.56 divided by 0.07= 8
true