A washing machine is filling up with water at a constant rate. The rate is Three-fourths of a gallon in StartFraction 1 over 5 EndFraction of a minute. Don calculated the unit rate to be StartFraction 3 over 20 EndFraction of a gallon per minute. What did he do wrong?
Answers
Given : A washing machine is filling up with water at a constant rate.
The rate is Three-fourths of a gallon in 1/5 of a minutes
Don calculated the unit rate to be 3/20 gallon per minutes
To Find : What did he do wrong?
He added 3/4 to 1/5 instead of multiplying 3/4 by 1/5.
He divided 3/5 by 1/5 instead of multiplying 3/4 by 1/5.
He added 3/4 to 1/5 instead of dividing 3/4 by 1/5.
He multiplied 3/4 by 1/5 instead of dividing 3/4 by 1/5.
Solution:
3/4 gallon filled in 1/5 minute
To find The Rate of Filling up water = Water Filled / Time Taken
= (3/4 ) / ( 1/5)
= 3 * 5 / 4
= 15/4 galloon per minute
3/4 x 1/5
= 3/20
Don multiplied time with water filled instead of dividing to find rate of filling Water
He multiplied 3/4 by 1/5 instead of dividing 3/4 by 1/5.
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Answer:3/4 x 1/5
Step-by-step explanation: