Equations and Expressions
Simplify 10x - 8 + 0.5(2x-3)
11x - 9.5
Which set of lengths could be the side lengths of a triangle?
a. 5,7,10
b. 7, 10, 17
c. 5, 10, 15
d. 6, 7, 15
a. 5, 7, 10
-2.12 - 6.84 + 4.19
-4.77
Kyle can swim 1/3 of a mile in 1/5 of an hour. How far can Kyle swim in one hour?
1 2/3 miles
Carrie has been flipping a coin and recording her results. She has flipped heads the last 2 times. What is the probability she will flip heads on the next flip?
1/2
Simplify
(-6x + 7) - (-4x - 2)
-2x + 9
An isosceles triangle has an angle that measures 68 degrees. Which could be the measure of another angle in the triangle?
a. 22 degrees
b. 56 degrees
c. 60 degrees
d. 112 degrees
56 degrees
-6.25 + 12.84 - 3.25
3.34
Parkwood Middle School has 560 students and 28 teachers. How many students are there per teacher?
20 students per teacher
A middle school band will conduct a survey to determine the best way to spend the money that raised. Which would be the best group for the band to survey?
a. math teachers
b. basketball team
c. students in the band
c. students in the band
Bob is decorating bulletin boards for the book fair. He has 5 identical rolls of paper to use. He uses 30 1/4 square feet of paper and has 5.25 square feet left over. How many square feet are on each roll?
7.1 or 7 1/10
What is the approximate length of the radius of a circle with a circumference of 63 inches? Round to the nearest whole number.
10 inches
Richard monitored the temperature outside his house. The temperature was -1degree Celcius at 1:00 p.m. By 4:00 p.m. the temperature has increased by 3 degrees. At 11:00 p.m. the temperature had dropped by 4 degrees. What is the temperature at 11:00?
-2 degrees
Susan is looking at summer camp prices. At Camp A, 2 nights cost $78, 4 nights cost $156 and 7 nights cost $273.
Camp B uses the equation y = 40x, where x = number of nights to calculate costs. Which camp charges more per night and by how much?
The numbers 0-9 are written on tiles and placed in a bag. What is the probability of choosing a 3 or a 5?
2/10 or 1/5
Simplify -1/2(1/4x - 3/8)
-1/8x + 3/16
I rectangular playground at a park measures 62 feet by 48 feet. There is a 4 1/2 foot wide walkway that borders the perimeter of the playground. What is the area of the walkway?
1071 square feet.
Marci ran a total of 13 miles in five days. She ran 3 1/4 miles each day on Monday, Wednesday and Friday. She ran 1 3/4 miles on Tuesday. How far did she run on Thursday?
1 1/2 miles
Ted bought a fishing pole for $35.99, bait for $12.99, and a pair of shorts for $14.99. He had a coupon for 25% off the shorts only. What was the total cost of Ted's items?
$60.22
There are 3 blue marbles, 5 red marbles and 2 green marbles in a bag. What is the probability of selecting a green marble, returning it to the bag and picking a second green?
1/25
Mr. Donahue needs 4 1/2 pounds of flour to make 5 loaves of bread. He bought a 50 pound bag of flour that costs $64.99. About how much will Mr. Donahue spend on flour for a loaf of bread?
$1.17
Alex is painting the interior of a rectangular box. The interior of the box measures 12 inches wide, 12 inches long and 6 inches high. IF the lid is missing how much area will ALEX paint?
432 square inches
Carmen needs $1100 to purchase a computer. She has saved 1/3 of the money so far this year. She will save 3/4 of the remaining amount by the end of the year. About how much money will she have saved at the end of the year? Round to the nearest dollar amount.
$925
Alex bought a car for $9000. The sales tax rate on the car is 3%. How much tax did Alex pay?
$270
There are 3 blue marbles, 5 red marbles and 2 green marbles in a bag. What is the probability of selecting a green marble, keeping it, and picking a second green?
1/45