Is tossing a coin an independent or dependent event?
What is independent
100
What is 25% of $80?
What is $20
200
6n = -120
What is n = -20
200
-x + 2 = 20
What is x = -18
200
2 (x+8) = 22
What is x = 3
200
You roll a dice twice. What is P (3 and even)?
What is 1/12
200
9 is what percent of 200?
What is 4.5%
300
x/7= -3
What is x = -21
300
7 - 3k = -14
What is k = 7
300
3x + 4.5x = 18
What is x = 2.4
300
A bag contains red and white buttons. Suppose you choose two buttons (you replace the first before you pick the second). The probability of getting a red is 3/10 and the probability of getting a white is 1/2. What is P(red and white)?
What is 3/20
300
What is the percent of change from $12 to $9
What is 25% decrease
400
-1 3/4=p - 1/2
What is p = -1 1/4
400
m/3- 18=7
What is m = 75
400
n - (3x+4) = -6
What is n = 1
400
Amy has three quarters and five dimes in her pocket. She takes our one coin, but does not replace the first coin after drawing it. What is the probability of first drawing a dime and then drawing a quarter?
What is 15/56
400
Find the percent of change from $1.80 to $2.20
What is 22%
500
A CD player that normally sells for $149.99 is on sale for $114.99. Write an equation and then solve it to find how much the price of the CD player is reduces.
What is 149.99 - x = 114.99; x = 35
500
Suppose you are helping to prepare a large meal. You can peel 2 carrots/min. You need 60 carrots. How long will it take you to finish if you have already peeled 18 carrots?
What is 2t+18 = 60, t = 21 min.
500
1/4 ( x - 16 ) = 7
What is x = 44
500
Suppose you guess all the answers on a three-question "true or false" quiz. What is the probability you will guess them all correctly?
What is 1/8
500
In Louisiana the state sales tax is 4%. If you buy a $2100 computer in Lousianna, how much tax will you pay?