Equations
Solve for the variable: g + 27 = 11
-16
Write an algebraic expression to represent the following situation: 4 less than the variable y
y - 4
Ally answered 9 out of 10 questions correct on her test. What percent of questions did she answer correctly?
90%
Write the probability of a coin landing tails up as a fraction and as a percent.
1/2 and 50%
Write 30% as a fraction and as a decimal
30/100 and 0.3
Solve for the variable: 2.5x = 99
39.6
84
A laptop was on sale from $200 to $150. What percent of the original cost was the laptop marked down?
25%
When rolling a 6-sided die and flipping a coin, what is the probability of rolling a 4 and landing heads up?
1/12
Write 7/100 as a decimal and as a percent
0.07 and 7%
5p + 9 - 7p = 73
-32
Evaluate 4x2 + 3y when x = 8 and y = -12
220
Michael practiced shooting free throws on evening. He was able to make 19 out of 26 baskets. What percent of free throws did he make? (Round to nearest whole percent)
73%
Find the mean of the following data:
7, 10, 4, 4, 0, 9, 15
7
Write 3/8 as a decimal and as a percent
0.375 and 37.5%
Solve for the variable: 3x + 15 = 4x + 12
3
a - bc2 when a = -2, b = 2, and c = -1
-4
A jacket is on sale for 20% off the original price. After the discount, the price is $60.
What was the original price of the jacket before the discount?
$75
For a certain game at a carnival, the probability of winning is 1/5. If 92 people play the game, about how many people will win? (round to the nearest whole person).
18.4, so 18 winners
Write 0.88888... as a fraction and a percent
8/9 and 88.8888%
Solve for the variable: 9 + 8p - 24 = 15 - 7p
2
trs - t2 when r = 3, s = 2, and t = -1
-7
Sales tax in a certain town is 7%. How much would tax be on a $87.42 purchase? (Round to the nearest cent)
6.1194 = $6.12 in tax
Find the median of the data set:
7, 3, 9, 13, 2, 6, 8, 1
7.5
Write 0.212121... as a fraction and as a percent
21/99 (or 7/33) and 21.2121%