Question

A reaction takes 4 min 28 sec to complete. Which of the following is a correct representation of that time period?

Answer 1

Using proportions, the correct representation of that time period is of 4.47 minutes.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.

We have that one minute has 60 seconds, hence the proportion that the 28 seconds correspond of a minute is:

28/60 = 0.47 min.

Hence the correct representation of that time period is of 4.47 minutes.

More can be learned about proportions at brainly.com/question/24372153

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