the quotient of r and 9
r/9
60/a
a=8
7.5
Which property says that you can multiply by 1 and still get the same number?
Identity of multiplication
Combine like terms
x+2+x+2+x
Is 6x-4x equivalent to 2(3x-2x)?
Yes
42 subtracted from p
p-42
7w-14
w=9
49
Which property shows that 3+(8+9)+2=(3+8)+9+2
Associative addition
Combine like terms
35x+7z-4z-15x-3z
20x
What do you call a hen that can count her own eggs?
a mathmachicken! LOL!
Free points to the team even if they got it wrong.
Melanie has 3 groups of pencils. The amount of pencils in each group is unknown (p). Write an expression to show how many pencils Melanie has.
3p
Do not show multiplication with x or with the dot.
2(x2-9)
x=5
32
Which property show that 3(8)=8(3)
Commutative of multiplication
4x2+11+3x-x2+4x2-2
7x2+3x+9
List the like terms
-3x+4+2x-x-9
-3x, +2x, -x
+4, -9
the product of 6 and n, decreased by 2
6n-2
w+y2+3w
w=2
y=6
44
Which property shows that 2b(4-2)=8b-4b?
distributive
Simplify
4a+4(6a+7b)+7b
28a+35b
List the constants
-3x+4+2x-x-9
4, -9
11 added to triple k
11+3k
3k+11
Mrs. Henson incorrectly evaluated the expression 4(n-4)+14, n=5.
4(n-4)+14=4(5-4)+14
=4(1)+14
=4(15)
=60
What is her mistake? What is the correct answer?
Added before multiplied
18
Apply the distributive property
3(4k-12)
12k-36
Simplify
2(2b+3c)-b
3b+6c
List the coefficients
-3x+4+2x-x-9
-3, 2, -1