Mathematics, 14.04.2021 01:20 emmiles2005
A light bulb's brightness is reduced when placed behind a screen. The amount of visible light produced by the light bulb decreases by 25% with each additional layer that is added to the screen. With no screen, the light bulb produces 750 lumens. The lumen is a unit for measuring the total quantity of visible light emitted by a source.
Select the correct equation that can be used to represent the lumens, L, after x screen layers are added.
A.
L = 750(1.25)x
B.
L = 750(0.25)x
C.
L = 750(0.975)x
D.
L = 750(0.75)x
Answers: 2
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A light bulb's brightness is reduced when placed behind a screen. The amount of visible light produc...
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