A washing machine is filling up with water at a constant rate. The rate is 3/4 of a gallon in 1/5 of a minute. Don calculated the unit rate to be 3/20 of a gallon per minute. what did he do wrong?​

Answers

Answer 1

Answer: you have to see how many gallons fill the container per minute, so take 3/4 and divide it by 1/5, which gives 15/4. So he multiplied the two numbers instead of dividing.

Step-by-step explanation:

Answer 2

Answer:

[tex]\frac{15}{4}[/tex] gallon per minute

Step-by-step explanation:

Given parameters:

Quantity of gallon = [tex]\frac{3}{4}[/tex] gallon

Time taken  = [tex]\frac{1}{5}[/tex] min

Unknown:

The solution is [tex]\frac{3}{20}[/tex] gallon per minute, what did he do wrong = ?

Solution:

To find the rate:

   Rate  = [tex]\frac{Quantity of gallon}{time }[/tex]

 Input the parameters and solve

  Rate  = [tex]\frac{\frac{3}{4} }{\frac{1}{5} }[/tex]   = [tex]\frac{3}{4}[/tex]  ÷ [tex]\frac{1}{5}[/tex]

                       Invert the [tex]\frac{1}{5}[/tex]  to give 5

                  =  [tex]\frac{3}{4}[/tex] x 5

                  = [tex]\frac{15}{4}[/tex] gallon per minute

The student failed to invert the [tex]\frac{1}{5}[/tex] before multiplying with  [tex]\frac{3}{4}[/tex]


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Answers

Answer:

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__

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Answer:

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Step-by-step explanation:

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