Equations
What is the equation for finding the total cost (C) if each item costs (x) and you buy (y) items?
C = yx
Identify and define the coefficient in the expression (7y - 2)
7
What is the ratio of 8 apples to 4 oranges? *in simplest form
What property states that (a + b = b + a)?
Commutative property of addition
You have $20 and spend $5. Write an equation to represent how much money you have left.
20-5 = x
20 = x + 5
Solve the equation: (3x + 5 = 20). What is the value of (x)?
x=5
What is the term for the number in front of a variable in the expression (5x + 3)?
Coefficient
If you score 25 out of 50 on a test, what percent did you score?
50%
Give an example of the distributive property using (3) and the expression (x + 4).
3(x+4)
If a car travels at a speed of 60 miles per hour, how far will it go in 2 hours?
120 miles = 60 x 2
If (2x - 4 = 10), what is the first step to solve for (x)?
How many terms are in the expression 4x + 3r2 - 4x2 +11
4 terms
Convert the ratio of 3:4 into a percent.
75%
Explain how (a + 0 = a) is an example of the identity property.
Anything plus 0 = itself
A recipe needs 3 cups of flour for 12 cookies. How much flour is needed for 36 cookies?
9 cups of flour
Write an equation to represent the statement: "Five less than twice a number is equal to 11."
2x - 5 = 11
How would you rewrite the expression (4(2 + x)) using the distributive property?
8 + 4x
A recipe calls for 2 cups of sugar for every 5 cups of flour. What is the ratio of sugar to flour?
2:5
Write an expression equivalent to (5(x + 2) + 3x) by combining like terms.
=5x + 10 + 3x
=8x + 10
If a bike costs $150 and you save $30 each week, how many weeks will it take to save enough money?
5 weeks = 150/30
If you have an equation (4(x + 2) = 28), what is the value of (x)?
x = 5
What is the sum of the expression (3x + 4) and (2x - 5)?
5x - 1
If a shirt originally costs $50 and is on sale for 20% off, what is the sale price?
$40.00
Name 3 properties that we reviewed in class
1. Commutative, 2. Associative, 3. Identity, 4. Distributive
A store is having a sale where all items are 25% off. If you buy an item that costs $80, how much do you pay at the register?
$60.00