3x = 15
x = 5
Positive times positive
Positive man c'mon
An unknown number of candy bars for 1.50 each is $16.50
3+6 = 6+3
Commutative property of Addition
x/2 = 4
x = 8
The product of two negative numbers
a positive number
An unknown amount of snickers for $0.75 per snickers and 1 mt dew in the cart for $1 totals $12.
0.75x + 1=12
1=1
Identity Property
x + 8 = 24
x = 16
The product of a negative number and a positive number
a negative number
A total of $400 of gas with a $30 fee priced at 2.75 a gallon
2.75x +30 = 400
or
2.75x=370
(3+4)+6 = 3+(4+6)
Associative Property
12x = 108
x = 9
The product of 3 negative numbers
A negative number
The total amount of snow in the driveway when 4 inches are already on the ground and it is snowing at a rate of 2 inch per hour.
t = 2h+4
2(5+1) = 2(5) + 2(1)
Distributive property
x/5 = 25
x = 125
The product of an even number of integers
Always positive.
The cost of electric right now is 21 cents per kilowatt hour. Model the electric bill as a relationship between the number of kilowatt hours you use with a monthly fee of $30.
T = 0.21x+30
4(x+y) = 4x+4y
Distributive Property
Your team just lost 500 points
Told you not to pick this category