A painter used 1 1/2 gallons of paint to paint 3/4 of a room. At this same rate, how many gallons will it take to paint the whole room?
I need the explanation for it please to thank you.
- PuzzlingLv 74 weeks ago
Let x be the amount of paint needed for a whole room (in gallons).
¾x = 1½
Multiply both sides by 4 to get rid of denominators:
3x = 6
Divide both sides by 3:
x = 6/3
x = 2 gallons
- BreakthroughLv 64 weeks ago
6/4 gallons of paint was used to paint 3/4 of a room so 2/4 of pain is needed to paint 1/4 of a room so 1/2 gallon of paint is needed to paint 1/4 of a room so 2/4 x 4 = 8/4 = 2 gallons of paint are needed to paint the whole room