Order of Operations
Simplify
4 - 2 x 3
-2
p + 10 = 13
p = 3
What is the y-intercept and slope of the equation:
y = 3x + 4
y-intercept = 4
slope = 3
3x + 4x
7x
It costs $10 to see a movie. If the theatre sells t tickets and the revenue, r, is shown by r = 10t then how many tickets were sold if the revenue is $250?
25 tickets
32 + 4 x 3 - 2
19
x - 12 = 15
x = 27
It costs $2 for every min of gameplay in an arcade plus a $5 fee to get in the door. Write an equation to represent this.
y = 2x + 5
3x - 5y + 2 - 3y
3x - 8y + 2
James has $24. He goes to the store and buys groceries. When he gets home he only has $8.25. How much did he spend at the store
$15.75
4(3-8) + 22
-16
3t - 2 = 7
t = 3
y = -12x - 3
Y-intercept = -3
slope = -12
4x + 6y - 7x + 10y -2
-3x +16y - 2
Jack wins the lottery and gets $2,400. He shares it with his family so everyone gets $300. How many people are on his family?
8 family members
33 + (2 x 3 - 5)
28
5x + 2 - 4 = -17
x = -5
Jim bakes 25 cookies every hour. Write an equation to represent this. What is the initial value and rate of change?
y = 25x
Initial Value = 0
Rate of Change = 25
3(4x + 3y) - 2x
10x +9y
.25x + 1.5y
25 - 8(2 x 4 - 2) + 32
-7
12x + 7 = 55
x = 4
Each month Sarah starts with $900. Each day she spends about $30. Write an equation to show how much money Sarah has on any given day(x). Then write the initial value and rate of change
y = -30x +900
Initial value = 900
Rate of change = -30
4(5x - 2y) + 7y - 12x
8x -y
Mary gets paid $70 for every day of work plus a one time payment of $600 each month. If in October she made $1860, how many days did she work?
17 days