Question

the cup was filled at a constant rate. it started empty. after 2 seconds, it held 70 cm^of water.Find the percent of the cup that is filled with water after 3 seconds.

Answer 1

70+70/2=105
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Answer 2

The percentage of the cup that is filled with water after 3 seconds is 105 $\rm cm^3$.

What is the unitary method?

The unitary method is a process by which we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.

The cup was filled at a constant rate. it started empty. after 2 seconds, it held 70 cm of water.

The cup was filled at a constant rate.

first, we will find the volume of water filled in the cup after 1 second.

2 seconds =  70 $\rm cm^3$ water

1 second = Volume of water filled in 1 second.

By Using the Unitary method we get;

The volume of water filled in 1 second = $\dfrac{70}{2}=35 \rm \ cm^3$

Now we will find the volume of water filled in the cup after 3 seconds.

1 second =  35 $\rm cm^3$ of water is filled

3 seconds = volume of water filled in the cup after 3 seconds.

The volume of water filled in the cup after 3 seconds = $35 \times 3=105 \ cm^3$.

Hence, the percentage of the cup that is filled with water after 3 seconds is 105 $\rm cm^3$.

Learn more about the unitary method here;

https://brainly.com/question/9794527

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