Algebraic Expressions
evaluate 6x + 5 for x =2
17
36 = 2m + 14
m = 11
A country fair costs $8 to enter plus an additional $1.50 per ticket for rides. Write an equation to represent the total cost to attend the fair for any number of tickets purchased. Let t represent the total cost and let n represent the number of tickets purchased.
t = 8 + 1.50n
A country fair costs $8 to enter plus an additional $1.50 per ticket for rides. What is the total cost to attend the fair if you buy 19 tickets?
$36.50
evaluate -3x + 4 for x = -2
10
-12 = 5x + 3
x = -3
The library charges $1 to use the copier plus $0.50 per page. Write an equation to represent the total cost to make any number of copies. Let c represent the cost and let n represent the number of copies.
c = 1 + 0.50n
The library charges $1 to use the copier plus $0.50 per page. What is the cost to make 24 copies?
$13
evaluate the expression when x = 60
x/5 -3
9
w/-2 -5=23
w = -56
Colleen has a prepaid phone card with $40 on it. It costs her $0.09 for each minute she spends on the phone. Write an equation to represent how much money is left on the card after any number of minutes. Let m represent the money left on the card and n represent the number of minutes used.
m = 40 - 0.09m
Colleen has a prepaid phone card with $40 on it. It costs her $0.09 for each minute she spends on the phone. How much money will be left on Colleens card after she talks for 128 minutes?
$28.48
Evaluate the expression when x = 15
1/3 x - (-4)
9
1.2h + 3.9 = 13.5
h = 8
The temperature when you got up this morning was -4 degrees. The temperature is expected to increase by 2 degrees every hour throughout the day. Write an equation to represent the temperature after any number of hours. Let t represent the temperature and n represent the number of hours.
t = -4 + 2n
The temperature when you got up this morning was -4 degrees. The temperature is expected to increase by 2 degrees every hour throughout the day. If the temperature is 6 degrees, how many hours have passed?
5 hours
Evaluate 2(-7x - 5) for x =-12
158
1/2 x- (-3)=-12
b = -30
There are 5 gallons of lemonade in a container. Sylvia fills glasses with 1/8 of a gallon. Write an equation to represent how much lemonade is left in the container after she pours any number of glasses. Let c represent the amount of lemonade left in the container and let g represent the number of glasses poured.
c = 5 - 1/8g
There are 5 gallons of lemonade in a container. Sylvia fills glasses with 1/8 of a gallon. If there is 2 5/8 gallons left in the container, how many glasses did she pour?
19 glasses