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The speed of sound at sea level is approximately 343 meters per second
((m)/(s)). What is the speed of sound at sea level measured in kilometers per hour
((km)/(h)) ?
Round the answer to the nearest whole number.
(There are 1000 meters in one kilometer and 3600 seconds in one hour.)

The speed of sound at sea level is approximately $343$ meters per second $\left(\frac{\mathrm{m}}{\mathrm{s}}\right)$ . What is the speed of sound at sea level measured in kilometers per hour $\left(\frac{\mathrm{km}}{\mathrm{h}}\right)$ ? $\newline$ Round the answer to the nearest whole number. $\newline$ (There are $1000$ meters in one kilometer and $3600$ seconds in one hour.)

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Understanding integers

Full solution

Q. The speed of sound at sea level is approximately

343

meters per second

\left(\frac{\mathrm{m}}{\mathrm{s}}\right)

. What is the speed of sound at sea level measured in kilometers per hour

\left(\frac{\mathrm{km}}{\mathrm{h}}\right)

?

\newline

Round the answer to the nearest whole number.

\newline

(There are

1000

meters in one kilometer and

3600

seconds in one hour.)

Convert Units: Convert the speed of sound from meters per second to kilometers per hour. $\newline$ First, we need to convert meters to kilometers and seconds to hours. $\newline$ There are $1000$ meters in one kilometer and $3600$ seconds in one hour. $\newline$ To convert meters per second to kilometers per hour, we multiply the speed in meters per second by the number of seconds in an hour and then divide by the number of meters in a kilometer.
Calculate Speed: Calculate the speed of sound in kilometers per hour. $\newline$ Speed in $\text{km/h}$ = Speed in $\text{m/s}$ $\times 3600 \, \text{s/h}$ / $1000 \, \text{m/km}$ $\newline$ Speed in $\text{km/h}$ = $343 \times 3600 / 1000$ $\newline$ Speed in $\text{km/h}$ = $1234800 / 1000$ $\newline$ Speed in $\text{km/h}$ = $1234.8$
Round Answer: Round the answer to the nearest whole number. $\newline$ The speed of sound at sea level in kilometers per hour is approximately $1235$ km/h when rounded to the nearest whole number.

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