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Laptop Yearly

APES-LCE2K4

If a laptop uses 60W of electricity per day and is plugged in for 8 hours per day, it will use approximately 480Wh of electricity per day.

$$\frac { 60W }{ 1 \space day } \times \frac { 8h }{1\space day } = 480Wh \space per \space year$$

If electricity costs $0.10 per kWh, how much will it cost to charge this laptop each year?

Try this calculation WITHOUT a calculator. Write down all your work.

A

$172,800.00

B

$480.00

C

$17

D

$172

E

$4.80