Twelve people entered a room....
Twelve people entered a room. Three more than two-thirds of these people then left. How many people remain
in the room ?
Solve the system by substitution
Solve the following system of equations, algebraically, by substitution.
y + 2x = 3
x = 3y + 5
A "find the number" word problem
Six less than three times a number is four more than twice the number. Find the number.
Gallons in the barrel
A rain barrel contained 4 gallons of water.just before a thunderstorm. It rained steadily for 8 hours, filling the barrel at a rate of 6 gallons per day. How many gallons of water did the barrel have after the thunderstorm?
A.) 4 gallons
B.) 6 gallons
C.) 7 gallons
D.) 9 gallons
The base of a rectangle is seven times the height. If the perimeter is 32 meters, what is the area?
A.) 28 m²
B.) 24 m²
C.) 16 m²
D.) 14 m²
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