Question Number 197374 by sciencestudentW last updated on 15/Sep/23
Answered by som(math1967) last updated on 15/Sep/23
$$\left.\boldsymbol{{C}}\right)\:\mathrm{792}{km} \\ $$
Answered by Tokugami last updated on 17/Sep/23
$${x}=\mathrm{45}{t}+\mathrm{54}{t} \\ $$$$\mathrm{54}{t}â\mathrm{45}{t}=\mathrm{72} \\ $$$$\mathrm{9}{t}=\mathrm{72}\rightarrow{t}=\mathrm{8} \\ $$$${x}=\mathrm{99}{t}=\mathrm{99}\left(\mathrm{8}\right)=\mathrm{792} \\ $$$$\left.{C}\right)\:\mathrm{792}\:\mathrm{km} \\ $$
Commented by sciencestudentW last updated on 19/Sep/23
$${thanks} \\ $$