Properties
HW Review
Test Preview
Simplifying Expressions
Proportions
100
What property is being shown?
3 + 1 = 1 + 3
Commutative
100
9 + (-2n) when n=-4
17
100
In order to receive full credit for a problem you must _____ ______, _______ and _____ your answers.
In order to receive full credit for a problem you must show work, label, and simplify your answers.
100
x+x+5+3
2x+8
100
Find x
1/2 = x/8
x= 4
200
What property is being shown?
5 + (1 + 2) = (5 + 1) + 2
Associative
200
Find the missing length.
40
200
4-16/ (-2)(2)
3
200
3x^2 + x^2 + xy + x
4x^2 + xy + x
200
Solve for x
x= 6
300
What property is being shown?
3(9x+(-3)) = 27x -9
Distributive
300
If I use the scale factor 8/5 would the new shape become larger or smaller? Explain your reasoning!
Bigger. 8/5 is 160% if its over 100% it grows. If its under 100% it shrinks.
300
Diamond Problem
xy=?
X=? Y= 4/5
X+Y= 21/20
X= 1/4
XY= 1/5
300
5+ x + -2 + x^2 +y^2 - 2x^2 +3 -x
-x^2 + y^2 +6
300
Is this table proportional, if so what is the constant of proportionality?
Yes, 3
400
What property is being shown?
(3x-4)+6 = 6+(3x-4)
Commutative
400
What is the area?
130 ft^2
400
Simplify by combining like terms.
x+4+(x-1)+3+2x
4x+6
400
9 - 3(x+2)
-3x+3
400
Sam used 6 loaves of elf bread on an 8 day hiking trip. He wants to know how many loaves of elf bread (b) he should pack for a 12 day hiking trip if he eats the same amount of bread each day.
How many loaves of elf bread should Sam pack for a 12 day trip?
LABEL
b= 9 loaves
500
What property is being shown?
1 = 1 + 0
Identity
500
Six plus four times a number, plus four minus four times the number.
4x + 6 + 4 - 4x
A= 10
500
A box contains 15 yellow, 15 orange, and 15 green tennis balls.
All 3 answers must be correct.
1. What is the probability of drawing a pink tennis ball?
2. What is the probability of drawing a green tennis ball?
3. What percent of the tennis balls are orange rounded to the nearest tenth?
1. 0
2. 15/45 = 1/3
3. 33.3%
500
-7(x+(-7)) -9
when x=5
-7x+ 40
-7(5) +40
x=5
500
Mika can eat 21 hot dogs in 6minutes. She wants to know how many minutes (m) it would take her to eat 35 hot dogs if she can keep up the same pace.
How many minutes would Mika need to eat 35 hot dogs?
LABEL
m= 10 minutes