Ratios and Patterns
If a pizza contains 8 slices and there are 4 people eating. How many slices will there be per person?
2
5(42) write out the equivalent expression before solving.
5(40 + 2) = 200 + 10 = 210
An unknown number in math is called
A variable
The Greatest Common Factor for 24 and 32
8
The sum of 3x and -2x
1x
If a car is traveling at 54 miles an hour, how far will it travel in 3 hours?
162
2(4x + 2)
8x+4
Which property is represented:
a + b + c = c + b + a
commutative property
Use the associative property to rewrite the following equation 5 * (4 * 7)
(5 * 4) * 7
18x divided by 2x
9x
A zebra and a lion are walking toward each other in the Savannah. The lion is walking at 15 feet per second and the zebra is walking at 8 feet per second. Write an equation to show how far they have traveled together.
15t + 8t
-7x + 4 + 15 - 3x + 2x - 12
8x + 7
Which property is represented:
(4 * 6) * 2 = 4 * ( 6 * 2)
associative property
(52)(11) - Write out the equivalent expression before solving
(50+2) (10+1) = 500+ 50 + 20 + 2 =
572
6x + [ 5x + (6 - 3x)]
What is 8x + 6 ?
Ms. Becky has 48 pieces of candy in her desk. She wants to divide the candy evenly among her 4 students. How many pieces does each student get?
12
3(4x + 8)/ 6
(12x + 24)/6 =
2x + 4
2 (or more) expressions are EQUIVALENT when....?
The answer is the same no matter what value you put in for X
What is the first operation in the following expression 3x2 + 5, when X = 2
First you have to square X so 22
Factor the following using the distributive property
6x + 9
3(2x + 3)
Brady earns $300 for each pack of Pokemon cards he sells. If he sells 3 packs a day for a week, how much money did he earn?
$6300
(3x + 2) (2x + 1)
6x2 + 7x + 2
Which property is represented by this:
a( b + c ) = a*b + a*c
The distributive property
Evaluate the expression 5(x + 4) - 8 for x = -3
-14
(2x -7)(3x + 4)
6x2 -13x -28?