One-Step Equations
x + 7.4 = 23.5
x = 16.1
2s + 5 = 23
s = 9
Solve each inequality. Graph the solution on a number line:
n + 5 < 7
n < 2 ; open circle to the left
Solve each inequality. Graph the solution on a number line:
4x - 3 < 9
x < 12 ; open circle to the left
What classroom number are you in?
F4
-5m = -35
m = 7
-5 - 4g = 15
g = -5
Solve each inequality. Graph the solution on a number line:
3 </ 2 + n
n >/ 2 ; closed circle to the right
Solve each inequality. Graph the solution on a number line:
-2 + 2x > -16
x > -7 ; open circle to the right.
How much is Student Council selling Spring Dance tickets?
$5
s + 10 = -23
s = -33
1.5z + 1.2 = 8.7
z = 5
Write an inequality and solve:
The sum of a number and 7 is at most 15.
n + 7 </ 15 ; n </ 8
Solve each inequality. Graph the solution on a number line:
-3x + 2 >/ 17
x </ -5 ; closed circle to the left
When is Bert Lynn's Spring Dance?
Thursday March 13 from 6pm to 8pm
r/9 = -8
r = -72
-7(x + 9) = 28
x = -13
Write an inequality and solve:
The difference of a number and -6 is less than 9
n - (-6) < 9 ; n < 3
Dhrupod is mowing grass to save money for a vacation. He charges $12 per yard. Dhrupod already has $40 and wants to have at least $148 to take with him. Write and solve an inequality to determine how many yards Dhrupod needs to mow to have at least $148. Interpret the solution.
12x + 40 >/ 148
x >/ 9
Dhrupod needs to mow at least 9 yards.
March 14th is a special math day. What day is it?
Pi Day!
-7a = 644
a = -92
3/7(x +2) = -15
x = -37
Christian earns $8 per hour working at the zoo. Write and solve an inequality that can be used to find how many hours he must work in a week to earn at least $120. Interpret the solution.
8x >/ 120 ; x >/ 15 ; Christian must work at least 15 hours.
A rental car company charges $45 plus $0.20 per mile to rent a car. Ms. Nakamura does not want to spend more than $100 for her rental car. Write and solve an inequality to find how many miles she can drive and not spend more than $100. Interpret the solution.
45 + 0.2d </ 100 ; d </ 275; She can drive no more than 275 miles.
What is Bert Lynn's Address?
5038 Halison Street, Torrance, CA 90503