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100
A variable can be defined as...
What is a symbol or letter that stands for a number?
100
Write the algebraic expression for the following English expression: a number increased by seven
What is n + 7
100
Evaluate 3x + 6 when x = 4
What is 18
100
Find the area of a rectangle with length 12 and width 5
What is 60 square units
100
Find the hypotenuse of a right triangle with legs 3 in. and 4 in.
What is 5 in.
200
Use a variable to describe the following pattern: 14% x 0 = 0 -6.3 x 0 = 0 79 x 0 = 0
What is n x 0 = 0
200
Write the algebraic expression for the following English expression: the product of twelve and a number increased by two
What is 12 x n + 2
200
Evaluate the following expression when m = 2 and x = 11 3m + 6x
What is 72
200
To join a local health club, members must pay an initial fee of $224.99 plus a monthly fee of $35. Find the total cost of membership after 8 months. Then write a formula to find the cost C of belonging to the health club for m months.
What is $504.99 C= 224.99 +35m
200
Emily has a notepad that is almost square. She measured it to be 5 in by 5.25 in. If Emily drew a diagonal line from one corner to the other, how long would it be?
What is 7.25 inches
300
Use one variable to describe the following pattern: 96 + 2 x 96 = 3 x 96 3.14 + 2 x 3.14 = 3 x 3.14 12 + 2 x 12 = 3 x 12
What is n + 2 x n = 3 x n
300
Write the algebraic expression for the following English expression: eighty is less than a number
What is 80 < n
300
Evaluate 2(s - t) when s = 10.6 and t = 2
What is 17.2
300
One general rule to estimate hiking time is 30 minutes for every mile, plus 6 minutes for every 200-ft increase in elevation. A formula describing this is T = 30m + 6e / 200 What is the estimated hiking time, T, for hiking 3 miles, m, if the elevation increases by 800 feet, e,?
What is 114 minutes
300
Determine whether 120, 160, and 200 form a Pythagorean Triple.
What is Yes!
400
Give three instances of the following pattern: 7.18 + y = 2 + y + 5.18
What is 7.18 + 2 = 2 + 2 + 5.18 7.18 + 97 = 2 + 97 + 5.18 7.18 + .0043 = 2 + .0043 + 5.18
400
Write the algebraic expression for the following English expression: 80 less than a number
What is n - 80
400
Give the exact value of c+3 / c + d when c = 2 and d = 4
What is 5/6
400
A general rule for finding a man's shoe size in the US is to multiply the length of his foot in inches by 3 and then subtract 22. S = 3L - 22 Nate's foot is 11 inches long. Find his shoe size.
What is 11
400
When a ladder is 4.5 feet from the base of a wall, it just reaches the top of the wall, which is 9.625 feet high. How long is the ladder?
What is 10.625 feet.
500
Use two variables to describe the following pattern: -(5 - 4) = 4 - 5 -(7 - 5) = 5 - 7 -(2 - 8) = 2 - 8
What is -(x - y) = x - y
500
Write the algebraic expression for the following English expression: eighty less a number
What is 80 - n
500
Evaluate 3 + ((2x+1) + x(x+2)) when x = 5
What is 49
500
The formula C = 0.6n + 4 estimates the temperature in degrees Celsius when n is the number of cricket chirps in 15 seconds. If a cricket chirps 25 times in 15 seconds, what is an estimate for the temperature?
What is 19 degrees Celsius
500
A triangle has a leg of 4.5 cm and a hypotenuse of 20.5 cm. How long is the second leg?
What is 20 cm