Add & Subtract Rational Numbers
Simplify the expression:
22 + ( -33 )
-11
Simplify the expression:
(-5^2) / ((-5^2))
-1
Simplify the expression:
-4 ( x + 3 )
-4x - 12
If you roll a number cube, what is the probability of getting less than 5?
2/3
What is it called when the first event affects the second event?
Dependent events
Simplify the expression:
| 12 - 21 |
9
Simplify the expression:
( 2 / 3 ) / ( 4 / 9 )
3/2
Simplify the expression:
5 + 6 ( m + 1 )
6m + 11
If you draw a card from a regular deck of cards, what is the probability of pulling a face card?
3/13
A card is chosen at random and not replaced and then a second card is picked. What is P(Ace then face card)?
4/221
Simplify the expression:
- 4/3 - 4/5
-32/15
Simplify the expression:
( 2 * 3 + 4 ) / (2 ( 3 + 4 )
5/7
Simplify the expression:
1/3(12-6r)
4 - 2r
If you flip a coin and get a heads and then flip the coin again, what is the probability of getting heads again on your second flip?
1/2
A bag contains 6 green marbles, 2 blue marbles, and 3 white marbles. Kevin draws a marble at random and puts it back, then Elliot draws a marble. P(blue then white)
6/121
Simplify the expression:
4^2/5^2
16/25
A company buys 1500 small items from a manufacturer for $0.02 apiece. What is the total cost of the items?
$30
Simplify the expression:
-9 (-2h - 8 ) + 6h
24h + 72
If you roll 2 dice how many possible outcome are there?
36
A jar contains 15 red pens and 10 blue pens. One pen is drawn at random by a student to use, then another pen is drawn by another student to use. What is the probability that both pens are red?
7/20
Simplify the expression:
1 + 1/( 2 + (1/3) )
10/7
If 36 people are at a pizza party, how many eight-piece pizzas need to be ordered so each person can get two pieces of pizza?
9 pizzas
The perimeter of an equilateral triangle is 12x - 15. What is the expression for the length of one side?
4x - 5
If you draw a card from a regular deck of cards, what is the probability of getting a card with a number on it?
9/13
A bag of marbles contains 6 white, 2 green, 1 red, and 3 blue. 3 marbles are selected one at a time and not replaced. What is P(red, white, blue)
3/220