Adding and Subtracting
Solve for x: x - 10 = 35
x = 45
Solve for n. 7n = 84
n = 12
Solve and graph the following inequality x + 15 > 27
x > 12
If your inequality says "greater than", which direction should your arrow go on your graph?
To the right (>)
Solve for a: a + 15 = 75
a = 60
Solve for t. t / 32 = 11
t = 352
Solve and graph this inequality p + 20 < 55
p < 35
If your inequality says "less than or equal to" what kind of circle should you use, empty or full?
Full
Keith is buying birthday candles for his great-grandmother's birthday cake. Her age, in years, will determine how many boxes of candles Keith will purchase. What is the dependent variable?
how many boxes of candles Keith will purchase
Solve for m. m - 20 = 27
m = 47
Solve for z. 16z = 48
z = 3
h +15 < 42
h < 27
The phrase "at least" means what?
Greater than or equal to
In the US House or Representatives, the population of a state is used to calculate how many representatives are from that state. What is the dependent variable?
the number of representatives
Solve for r. r + 17= 35
r = 18
Solve for g. g / 16 = 16
g = 256
solve and graph:
4x > 36
x > 9
The phrase "at most" means what?
Less than or equal to
Cooper is planning a birthday party and plans to serve cupcakes. The more of his friends who attend the party, the more cupcakes he will prepare. What is the independent variable?
the number of friends attending the party
x + 16 = 160
x = 144
2x= 250
x / 4 > 20
x > 80
Which side of the inequality should your variable be, left or right, or order to graph effectively?
left
Ariel is assembling bouquets of roses. The number of roses in her show determines the number of bouquets she can assemble. What is the dependent variable?
the number of bouquets Ariel can make