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Q66.

Expert-verified
Found in: Page 7

Pre-algebra

Book edition Common Core Edition
Author(s) Ron Larson, Laurie Boswell, Timothy D. Kanold, Lee Stiff
Pages 183 pages
ISBN 9780547587776

Multiple Choice Write a variable expression for a length of time in minutes if you know the number s of seconds $\begin{array}{l}a.s+60\\ b.\frac{s}{60}\\ c.60s\\ d.\frac{60}{s}\end{array}$

The variable expression for the length of time is $b. \frac{s}{60}$.

See the step by step solution

Step-1 – Relation between seconds and minutes

There are 60 seconds in one minute.

So, the number of minutes in 1 second will be $\frac{1}{60}$.

Step-2 – Given information

It is given that the length of time is s seconds. And need to find the equivalent length of time in minutes.

Step-3 – Write the variable expression for length of time

Since the number of minutes in 1 second is $\frac{1}{60}$, so in order to find the number of minutes in s seconds, multiply s with $\frac{1}{60}$.

So, the variable expression for a length of time s seconds in minutes is given by

$s·\frac{1}{60}=\frac{s}{60}$

Thus, the variable expression for the length of time in minutes is $\frac{s}{60}$.

Hence, option (b.) is correct.