Question

it takes 6 minutes to fill an empty aquarium to a depth of 2/5 meters. Which is the unit rate in minutes per meter? write your answer in simplest format

Answer 1

ANSWER

15 minutes per meter

EXPLANATION

To find the unit rate in minutes per meter, we have to divide the number of minutes it takes to fill 2/5 meters of the tank by 2/5 meters:

$6\div\frac{2}{5}$

Using the KCF method:

Keep the first fraction - which in this case has a denominator of 1

Change the division sign into a multiplication sign

Flip the second fraction

$6\times\frac{5}{2}$

And then do the multiplication:

$\frac{6\times5}{2}=\frac{30}{2}$

And simplify:

$\frac{30}{2}=15$

So the unit rate is 15 minutes per meter