What is a generalization in which letters representing numbers are combined according to the rules of arithmetic.
Algebra
100
What is five more than two times a number translated to an algebraic expression?
2N + 5
100
What is the saying to help you remember the order of operations?
Please Excuse My Dear Aunt Sally
100
What is X(50 - 3X) + X if X = 7 ?
210
100
Chris want to count the total number of feet of humans and dogs at the local dog show. Which expression describes the number of feet if there are "x" people and "y" dogs? a)2x+4y b)2(x+y) c)4x+2y d)2x
A
200
What are the letters used to represent unknowns in algebraic expressions.
variables
200
What is seven less than five times the square of a number?
5N^2 - 7
200
What does the P..E..M..D..A..S stand for in mathematics?
The Austin Museum of Art charges an admission fee of $5 for adults and $4 for students. Which expression describes the average cost per person for a group of 45 people with "x" adults and "y" students? a) 45(5x+4y) b)(5x + 4y)/45 c)45/ (5x+4y) d)(4x +5y)/45
B
300
What is any mathematical formula combining numbers and/or variables called?
expression
300
What is nine diminished by four times a number?
9 - 4N
300
What is 2 + 6 / 2 X 3 equal?
11
300
What is d^2 + y^2 / x(a + b) when a=8, b=6, d=-3, x=4, y=5?
17/28
300
Emilio is taking a group of 25 students to the zoo. He buys a bottle of water for $X and a sandwich for $Y for each child in the group. Which expression describes the total cost of his purchase?
a)25xy b)25/(x+y) c)(x+y)/25 d)25(x+y)
D
400
What word do we use to describe the process of substituting values in the variables of an algebraic expression and simplifying?
Evaluate
400
What is the difference of three times "a" and two times "x" divided by the difference of three times "x" and "a"?
(3a - 2x)/(3x - a)
400
What is (6^2 + 8^2) / (4^2 - 2(7))?
50
400
What is the area of a rectangle that is represented by 2a^2 - 3a +4 when a = 5cm. ?
39 square cm
400
Griselda is having a party for 75 people. The catering cost is $18 per person. By adding "x" more people to the list, she will decrease the catering cost by $Y per person. Which expression gives the total cost of her party? a)(75+x)(18+y) b)(75+x)(18-y) c) (75-x)(18+y)
d) (75-x)(18-y)
b
500
What is the word we use that means to calculate in order to get an answer?
Simplify
500
What is the quotient of the difference of cube of b and the cube of d and the difference of b and d cubed?
(b^3 - d^3)/(b - d)^3
500
What is the product of nine and five decreased by the sum of eight and seven?
30
500
What is the value of b if the area of a rectangle is represented by
4b^2 + 2b - 1 = 419? Is it 2, 5, 10, or 20?
10
500
Selena's age is 4 years less than three times Belinda's age. If Selena is 32 years old, which equation would determine Belinda's age?
a)32=3X+4 b)32=3X-4 c)32=4X+3 d)32=4X-3