If a sprinkler waters 1/15 of a lawn in 1/3 hour, how much time will it take to water the entire lawn?
2 answers:
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Answer:
Megan added the equations together but she subtract 4 instead of addition of 4. The correct solution is (1,6).
Step-by-step explanation:
The given equations are
...(1)
.... (2)
Add both equations to eliminate x.
Megan make a mistake in this step. She added the equations together but she subtract 4 instead of addition of 4.
Divide both sides by 4.
Put this value in equation (1).
Divide both sides by 2.
Therefore the correct solution is (1,6).