VOCABULARY
A statement that two mathematical expressions are equal.
What is an equation?
-5x+2x
What is -3x?
4p + 2 = 22
What is p=5?
7x – 5 = 9
What is x=2?
Evaluate -3x when x=2 and -3
What is -6 and 9?
The distance of a number from zero on the number line. Always positive.
What is Absolute Value?
-7y-4y.
What is -11y
-12y+6=-18
What is y=2?
-3n-8=7.
What is n=-5?
Evaluate the algebraic expression 6g – 11 when g=-5.
What is -41?
The set of negative and positive whole numbers.
What are Integers?
-8z-(-4z) +9.
What is -4z+9?
-1/3r+18=-12
What is r=90?
1/2t-9=11.
What is t=40?
-1/4y+2 3/4 when y=-4.
What is 3 3/4?
A quantity that changes or can have different values, usually represented by a letter,
What is a variable?
-14r+(-6r)+16+14
What is -20r+30?
A car rental company charges an initial fee of $8.25 plus a daily rental fee of $35.00 per day for a standard size car. Find the total cost to rent the car for five days
What is $183.25?
3.5𝑥 – 2.1 = 2.8
What is 1.4?
Evaluate the algebraic expression –2.3a + 4.6
when a =6
What is —9.2?
The number that is next to a variable in an algebraic term or expression. Example: the number 2 in 2X
What Is a Coefficient?
18-(-12x)+4+(-3X).
What is 22+9x or 9x+22?
Rachel ordered early learning software for her daughter from an online retailer. Each item costs $6.50, and there is a shipping fee of $8.50 for the entire order. What is the cost of Rachel’s order if she buys 7 items?
What is $54?
Write and solve an equation for seven less than four times a number is 29.
What is 4n-7=29 and x=9?
A county fair costs $9.50 to enter plus an additional $2.50 per ticket for rides and food. Write an algebraic expression to represent the situation. Let t represent the number of tickets for rides and food.
What is 9.50+2.5t or 2.5t+9.50?