A Motorist travels xkm at 40km/h and y at 30km/h.The total time is 2 and a half hours.If the time taken to travel 6xkm at 30km/h and 4y at 50km/h 8s 14 hrs .Find x and y

Question

ganeshie8 · Answer

time = distance / speed

ganeshie8 · Answer

A Motorist travels xkm at 40km/h and y at 30km/h.The total time is 2 and a half hours. 


$\large  \frac{x}{40} +  \frac{y}{30} =   2.5$

ganeshie8 · Answer

similarly setup another equation, and solve x and y ?

anonymous · Answer

$$t=\frac{d}{r} $$Solve the following for x and y:$$\left\{\frac{x}{40}+\frac{y}{30}=\frac{25}{10},\frac{6 x}{30}+\frac{4 y}{50}=14\right\}  $$$$\left\{x=\frac{400 \text{ km}}{7},y=\frac{225 \text{ km}}{7}\right\} $$

anonymous · Answer

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