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Courtney takes 210 steps during her a long distance run. Each step covers an average of 810 mm. What total distance in mm) did Courtney Cover During her run? Write your answer in scientific notation. When convert the distance to the more appropriate unit kilometers. Write that answer in standard form

Answer :

Let us first calculate the total distance in mm

[tex]2.4\cdot10^4\cdot810=1944\cdot10^4\operatorname{mm}=1.944\cdot10^7\operatorname{mm}[/tex]

we know that to convert from mm to km we have to multiply by 10^-6. So we have that the total distance in km is

[tex]1.944\cdot10^7\cdot10^{-6}\operatorname{km}=1.944\cdot10^1\operatorname{km}=19.44\operatorname{km}[/tex]

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