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Elizabeth can't wait to read the newest issue of her favorite comic, The Notorious Ninja, so she plans to bike $3$ miles to the comic book store after school. If Elizabeth can usually bike $12$ miles in an hour, how many minutes will it take her to get there? $\newline$ Write your answer as a whole number, decimal, or simplified fraction. Do not round. $\newline$ ____ minutes $\newline$

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Multi-step problems with unit conversions

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Q. Elizabeth can't wait to read the newest issue of her favorite comic, The Notorious Ninja, so she plans to bike

3

miles to the comic book store after school. If Elizabeth can usually bike

12

miles in an hour, how many minutes will it take her to get there?

\newline

Write your answer as a whole number, decimal, or simplified fraction. Do not round.

\newline

____ minutes

\newline

Calculate Biking Speed: Determine Elizabeth's biking speed in miles per hour. $\newline$ Elizabeth can bike $12$ miles in $1$ hour. $\newline$ Speed $=$ Distance $/$ Time $\newline$ Speed $=$ $12$ miles $/$ $1$ hour $\newline$ Speed $=$ $12$ mph
Calculate Biking Time: Calculate the time it will take to bike $3$ miles at a speed of $12$ miles per hour. $\newline$ Time $=$ Distance $/$ Speed $\newline$ Time $=$ $3$ miles $/$ $12$ mph $\newline$ Time $=$ $0.25$ hours
Convert Time to Minutes: Convert the time from hours to minutes. $\newline$ There are $60$ minutes in $1$ hour. $\newline$ Time in minutes $=$ Time in hours $\times 60$ minutes/hour $\newline$ Time in minutes $=$ $0.25$ hours $\times 60$ minutes/hour $\newline$ Time in minutes $=$ $15$ minutes

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