You can upgrade lighting at your factory to LED bulbs that costs $6.95 each and last an average of 5 years. It costs $3.00 in la

Question

3 years ago

13

You can upgrade lighting at your factory to LED bulbs that costs $6.95 each and last an average of 5 years. It costs $3.00 in la

bor to change a bulb. Over a 10-year period, about how much will it cost per year to install LED bulbs in 100 lamps and change the bulbs when they burn out?
A. $140
B $200
C $440
D $700
E $1,000

Mathematics

2 answers:

Maru [420] · Answer 1 · 2022-02-05T02:12:42+03:00

Maru [420]3 years ago

8 0

Answer:

$200

Step-by-step explanation:

kompoz [17] · Answer 2 · 2022-02-05T00:00:39+03:00

Labor is $3 per bulb, there is 100 lamps, so the labor cost would be 100 x 3 = $300.

The cost of one bulb is 6.95, the total cost of bulbs is 100 x 6.95 = $695

The total fr bulbs and labor is $695 + $300 = $995

The bulbs last 5 years so, for a 10 year period you would need to change the bulbs twice so total cost for 10 years would be 995 x 2 = $1990.

To find the cost per year, divide the total cost by the number of years:
1990 / 10 = 199 per year. Round to $200 per year.
The answer is B.