Inequalities
A number (x) is at least 6.
x ≥ 6
An airplane can go 3,500 miles on a single filing of fuel. It has gone 1,250 miles.
x + 1250 ≤ 3500
A car can travel 60 miles per hour. Write an equation to determine the distance d that the car can travel in t hours.
d = 60t
Draw the equal sign
=
No more than 150 people will fit on the plane.
x ≤ 150
Is 4/5 a solution of 5/4 + x ≤ 2
No
How many hours will it take the car to travel 540 miles, if d = 60t?
9 hours
This sign means greater than
>
The flight training required at least 50 hours.
x ≥ 50
Solve x + 3.2 ≥ 10.2
7
How many miles will the car travel in 12 hours, if d = 60t
720 miles
This sign means greater than or equal to
≥
It takes a wind speed of more than 5 mph to keep a kite in the air.
x > 5
x >3.9
Sen and Lady have a friend Archie who moves according to the equation d = 7.5m
Solve the equation 540 = 7.5m. What does the solution to the equation mean in this context?
m = 72; the minutes needed to crawl 540 feet.
This sign mean less than
<
Is 4/5 a solution of x ≤ 2
Yes
Solve 8x > 112
x > 14
Sen and Lady have a friend Archie who moves according to the equation d = 7.5m
Solve the equation d = 7.5(540). What does the solution to the equation mean in this context?
d = 4050 ft; the distance traveled after 540 minutes.
This sign means less than or equal to
≤