Probability (AND)
To find the probability of one event AND another, you have to ______ the probabilities of both events.
multiply
To find the probability of one event OR another, you have to ______ the probabilities of both events.
add
A number minus 3.
x-3
What is 8% as a decimal?
0.08
4-(-2)
6
What is the probability of rolling a 6 AND a 1 on a dice?
1/36
What is the probability of rolling a 3 OR a 4 on a dice?
2/6 or 1/3
x+7=10
0.065
0.27
6.5%
27%
6 x (-4)
-24
A bag contains 10 marbles: 3 red, 2 blue, 1 yellow, and 4 green. What is the probability of picking a red marble, putting it back, and then pulling another red again?
9/100 or 9%
A bag contains 10 marbles: 3 red, 2 blue, 1 yellow, and 4 green. What is the probability of picking a yellow OR green marble?
5/10 or 50%
The product of 4 and x is 8.
4x=8
A box of pizza costs $20. If the tax rate is 8%, how much will you pay in taxes?
$1.60
1/3 + 2/5 =
11/15
You have a deck of cards. What are the chances that you pull a 10, put the 10 back in the deck, and then pull an ace?
16/2704 or about 0.6%
You have a deck of cards. What is the probability of pulling a Jack OR a Queen?
8/52
Solve the following.
I have 8 video games, this is 6 less than you have. How many video games do you have?
14
A pair of jeans cost $40. If you have a 30% discount coupon, how much will you pay in total?
$28
One side of a triangle measures 4 inches. If the scale factor is 2, what is the measurement of the corresponding side on the new triangle?
8 inches
A bag contains 10 marbles: 3 red, 2 blue, 1 yellow, and 4 green. What is the probability of picking a green marble, not putting it back, and then pulling another green again?
12/90
A bag contains 10 marbles: 3 red, 2 blue, 1 yellow, and 4 green. What is the probability of picking anything but a blue OR yellow marble?
7/10
When Joseph was 5 years old, he was half of his brother's age. If his brother is now 20, how old is Joseph?
15
$120
5+2(-2x+3)
-4x+11