Egee 102 you are redecorating your living room. and the interior designer recommends 50 footcandles illumination. your living room measures 6 ft by 12 ft. how many 40 watt bulbs will be required if one bulb emits 515 lumens. (1 footcandle = 1 lumen/sq. ft)

Question

Mathematics

Alia Walker

4 April, 22:13

Egee 102 you are redecorating your living room. and the interior designer recommends 50 footcandles illumination. your living room measures 6 ft by 12 ft. how many 40 watt bulbs will be required if one bulb emits 515 lumens. (1 footcandle = 1 lumen/sq. ft)

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Cecelia Castillo · Answer 1

The area of the room is given by:

A = (6) * (12)

A = 72 feet ^ 2

For each 40 watt bulb we have:

(515) / 72 = 7.152777778 footcandle

The number of 40 watt bulbs is:

N = (50) / (7.152777778)

N = 7, 40 watt bulbs

Answer:

will be required а bout:

N = 7, 40 watt bulbs