contestada

A mill uses 4 times as much power as a lathe. If the total power used by a mill and 3 lathes is 1540 kilowatts, find the power used by a single lathe.

Respuesta :

Answer:

Step-by-step explanation

sqdancefan

Answer:

  220 kW

Step-by-step explanation:

You want the power used by a single lathe when a mill uses 4 times as much, and a mill plus 3 lathes uses 1540 kW.

Setup

Let p represent the power used by a single lathe. Then a mill uses 4p, and the given total is ...

  (4p) +3p = 1540

Solution

  7p = 1540 . . . . . . collect terms

  p = 220 . . . . . . . divide by 7

A single lathe uses 220 kW.