Determine the amount of energy consumed in kWh by a 250 W machine in 25 hours.

Sure, here are the steps to calculate the energy consumed by a 250 W machine in 25 hours:

Step 1: Understand the units. The power of the machine is given in watts (W) and time is given in hours (h). The energy consumed is asked in kilowatt-hours (kWh).

Step 2: Convert the power to kilowatts. We know that 1 kilowatt (kW) is equal to 1000 watts (W). So, 250 W is equal to 250/1000 = 0.25 kW.

Step 3: Calculate the energy consumed. The energy consumed by a machine (in kWh) is the product of its power (in kW) and the time (in h) it was running. So, in this case, the energy consumed is 0.25 kW * 25 h = 6.25 kWh.

So, the 250 W machine consumes 6.25 kWh of energy when it runs for 25 hours.