Decimals and Fractions
Change 25/4 into a mixed number
6 1/4
Find 2% of $800
$16
Find the mean for 76, 82, 75, 87, 80, 82, and 79. Round to the nearest hundrenth.
80.14
Solve with no calculator: (-5)(-2)(0)(-1)
0
18 = y/4
Solve for y
y=72
Change 3/5 into a decimal
.6
A number is 32% of 6500. What is the number?
2080
What is the median value $268, $1,258, $654, $1,258, $900, $1,558, and $852?
$900
Solve with no calculator: (12)(-2) / (-2)
12
2y - 8 = -3y - 18
Solve for y
y=-2
From a wooden dowel 12 1/2 feet long, Mr. Jackson cut two pieces, each 3 3/4 feet long. How long, in feet, is the remaining piece?
5 feet
LaRue invested $2000 for 3 years at an interest rate of 7%, compounded annually. How much interest did he earn on his money?
$450
What is the mode of the following points scored: 14, 17, 14, 12, 13, 15, 22, and 11?
14
Convert 7.2 x 10-3 using scientific notation
.0072
In a month, Aaron spends twice as much on rent as he does on food for his family. Last month, he spent $1650 on rent and food. How much did he spend on rent?
$1,100
Jacob is paid $8 an hour. If he earned $258 in 1 week, how many hours did he work?
32.25 (or 32 1/4) hours
Find the percent of decrease from from $2.00 to $1.25
38%
A movie theater sells 180 adult tickets and 60 children's tickets to a movie. As part of a special promotion, one ticket will be chosen at random, and the winner will receive a prize. What is the probability that the winner will be a child?
1/4, .25, or 25%
Find the value of y2+16 - (y-5)2 when y=3
21
2(x + 3) < 4
x < -1
Jelly beans are $2.29 per pound. Max needs 6 7/8 pounds for an art project. How much will he spend? Round to the nearest dollar.
$15.74 exactly, or $16 rounded
A local hospital currently has 184 male patients. If the ratio of male to female patients 4:3, how many female patients are there in the hospital?
138
O'Brian is wrapping a gift for his daughter. He will use one type of wrapping paper, one type of ribbon, and one bow. He has three different types of wrapping paper, three different types of ribbon, and three different bows. How many ways can O'Brian wrap the gift?
A minor-league baseball team is giving a local charity the sum of $1,500 and $0.50 for each ticket over 2,000 sold for one game. Let x represent the number of tickets sold. If the team sells more than 2,000 tickets, which of the following expressions could be used to find the amount of the donation?
A) $1,500 + $0.50x
B) $1,500 + $0.50(2,000-x)
C) $1,500 + $0.50(x-2000)
D) $1,500(2,000-x)($0.50)
C) $1,500 + $0.50(x-2000)
Multiply the quadratic expression: (x-5)(x-5)
x2-10x+25