Equations
6x - 10 = 10x + 2
x = -3
Rihanna solves 14 math problems in 3 minutes. At this rate, how long would it take her to solve 50 math problems? Round to the nearest hundredth.
10.71 minutes.
Solve: x = pr - 1 for r
r=(x+1)/p
(4(13)-52)/(2+8
0
Convert 3 cups to ounces
(1 cup = 8 ounces)
24 ounces
10/(x+2)=5/9
x = 16
The difference of 10 and a number is half that number increased by 4. Set up an equation, and then solve.
x = 4
Solve for z.
x = (4y + z)/2
2x - 4y = z
Evaluate if x = 2 and y = -1
x^2-xy
6
(1 yard = 3 feet)
(5280 feet = 1 mile)
0.8 miles
-108 = -8(x + 6) - 4
x = 7
Josh brings in a large collection of rocks. Cooper steals half of this collection. Then, Garrett finds 7 rocks to add to the collection. Josh now has 67 rocks. How many rocks did Josh start with?
Solve for x.
-8k+2y-x=r
x=-8k+2y-r
Simplify.
-2(x - 1) - 5x + 4(2x - 6)
x - 22
Convert 50 meters per second to miles per hour.
(1 mile = 1600 meters)
112.5 mph