Arithmetic
[(-1)2 + 22 + (-3)2]/2 * 16/12 + (-2)2 + 32
Evaluate this expression.
8
DOUBLE JEOPARDY
What is the surface area formula for any pyramids?
The total area of all sides + the area of the base.
18/x = 72/100
whats x?
A team of five basketball players has a mean height of 188 cm. Four out of these five players have a mean height of 187 cm. What is the height of the fifth player?
192 cm
|3-b| = 7
If a and b are two positive solutions of the equation above, what is the value of b-a?
4
The water mill makes 24 revolutions in half an hour. How many revolutions will the water mill make in 3 hours and 15 minutes?
156
A rectangle has a length of 22 inches and a width of 16 inches. What is the perimeter of the rectangle, in feet?
6 1/3 ft
Using the approximation 2.54 centimeters = 1 inch, how many centimeters are in 4 feet 7 inches?
139.7
A sports store has a container of handballs: 4 blue, 5 red, 8 yellow, 9 white, and 11 green. If one ball is picked from the container at random, what is the probability that it will be yellow?
8/37
w/x = y/z
In the equation above, w, x, y, and z are positive numbers. Which of these is equal to z?
xy/w
The least of 5 consecutive integers is l,
and the greatest is g. What is the value of l+g/2
in terms of l?
3l
A car travels at 4,400 feet per minute. The radius of each tire on the car is 1 foot. How many revolutions does one of these tires make in 1 minute? (Use the approximation 22/7 for pi).
700
A metal square used in an electronic device must have a thickness of 0.02 inch, with an allowable error of 1 percent. What is the greatest allowable thickness of the metal square?
0.0202
A couple just had twin girls, but they cannot decide between the names Vicky, Rosie, Julie, and Pam. If the girls will not have the same names, how many different pairs of names are possible?
6
Today, Mark's age is 1/4 of Jordan's age. In 2 years, Mark's age will be 1/3 of Jordan's age. How old in Jordan today?
16 years old
A marathon runner has to run 49 km. He ran 7 km in 35 minutes. If the runner continues to run at the same rate, how many hours will it take to cover the rest of the distance?
3.5 hours
In the figure above, the outer square has an area of 81 in2. If the side of the inner square is 7/9 of the side of the outer square what is the area of the white region?
32 in2
Nancy is baking a cake for her birthday party. The cake's recipe says that eggs weigh 2/5 of all ingredients, sugar weighs 5/15 of all ingredients and flour weighs the rest. What is the ratio of the flour's weight to the egg's weight in Nancy's cake?
2:3
A survey asked 50 students what pets they have. The following results are obtained: 20 students have cats, 24 students have dogs, and 4 students have both cats and dogs. What is the probability of selecting a random student that has neither a cat nor a dog?
0.2, 10/50, 20/100
Each week, Leon has fixed expenses of $1,250 at his furniture shop. It costs him $150 to make a chair in his shop, and he sells each chair for $275. What is Leon’s profit if he makes and sells 25 chairs in 1 week?
1875
Easy 500
n:27 = 12:45
whats n?
7.2
DOUBLE JEOPARDY!!!
If the a circle is inscribed into a square having a circumference of 14 pi cm, what is the area of the shaded region in mm? Use 22/7 as a reference of pi
420 mm
In Centerville, 49% of the population is female, and 60% of the population commutes to work daily. Of the total Centerville population, 21% are females who commute to work daily. What percentage of the total Centerville population are males who do not commute to work daily?
12 %
DOUBLE JEOPARDY!!!
The probability of choosing a black ball from the bag is 2/5. Olivia selects a ball from the bag and then returns it back. When she does this 4 times, what is the probability of choosing the black ball all 4 times?
0.0256
DOUBLE JEOPARDY!!!
If 814/36 = (1/3)2x
What is x?
-5