above is the distance formula, plugging your numbers from P(x1,y1) and Q(x2,y2).
or
¿Alguien sabe donde puedo descargar estos libros?
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above is the distance formula, plugging your numbers from P(x1,y1) and Q(x2,y2).
or
Well, their speeds are (
is Jack's speed, and 
is Richard's.
They, together, can paint 12 houses in 35 days. To get a single house, we only have to calculate
which is very close to 3 (a bit below)
They, together, can paint 12 houses in 35 days. To get a single house, we only have to calculate