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Marisol and mimi walked the same distance from their school to a shopping mall. marisol walked 2 miles per hour, while mimi left 1 hour later and walked 3 miles per hour. if they reached the mall at the same time, how far from the mall is their school? answers

Respuesta :

jushmk
Marisol = 2 mph
Mimi = 3 mph and left 1 hour after Marisol had left

They arrived at the same time.
If Marisol took x hours to arrive, then Mimi took (x-1) hours. The distance was the same.

Distance, D = Speed*Time
Marisol: D = 2*x = 2x
Mimi: D = 3*(x-1) = 3x-3

then,
2x = 3x -3 => (2-3)x = -3 => -x = -3=> x = 3 hours

Therefore,
D =2x = 2*3 = 6 miles

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