Data and probability
A coin is flipped once. What is the probability of getting heads?
1/2 (50%)
A rectangle has a length of 8cm and a width of 3cm what is the perimeter?
2(8+3)=22cm
A recipe calls for 2 cups of flour to make 12 cookies. How many cookies can be made with 1 cup of flour?
6 cookies
What is -7+12
5
Solve for X
x+5=12
X=7
A bag contains 3 red marbles and 2 blue marbles, if you pick 1 marble at random, what is the probability of getting a blue?
2/5 40%
A square has a side length of 6cm. What is its area?
6x6=36
A car travels 120 km in 2 hours. If it continues at the same rate, how far will it travel in 5 hours?
300km
What is 15-23
-8
Solve for X
3x=21
X=7
The data set is: 4,6,8,10,12. What is the mean?
8
A triangle has a base of 10cm and a height of 4cm. What is it’s area?
1/2(10)(4) = 20cm2
A map uses a scale of 1cm : 5km. If two towns are 8 cm apart on the map, what is the actual distance between them?
40km
What is -4x6
-24
2x+4=18
2x=14
x=7
A standard 6 sided die is rolled. What is the probability of rolling a number greater than 4?
2/6=1/3
A circle has a radius of 5cm. What is the circumference? use (C=2πr)
31.4cm
A store sells 3 notebooks for $12. At the same rate, how much would 7 notebooks would cost?
1 notebook costs $4
7 notebooks $28
What is -36/-9
4
Solve for X
5x-8=27
5x=35
x=7
A bag contains 5 green marbles, 4 yellow marbles, and 3 purple marbles one marble is chosen as random and not replaced Then a second marble is chosen. What is the probability that both marbles are green
First green: 5/12
Second green: 4/11
A rectangular prism has length of 8cm, a width of 5cm, and a height of 3cm. What is its volume?
8x5x3=120cm3
A machine can produce 180 parts in 12 minutes. At the same rate, how many parts can it produce in 35 in minutes?
15 parts per minute
525 parts
What is (-5)2-3(4)+7
20
3(X+4)-5=19
X=4