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8 February, 19:30

The function b (n) = 6n represents the number of light bulbs b (n) that are needed for n chandeliers. How many lightbulbs are needed for 15 chandeliers?

90 lightbulbs

2 lightbulbs

96 lightbulbs

80 lightbulbs

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  1. 8 February, 20:16
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    The answer is 90 lightbulbs.

    b (n) - the number of light bulbs

    n - the number of chandeliers

    The function is b (n) = 6n

    If n = 15, then:

    b (15) = 6 · 15 = 90

    Therefore, the number if light bulbs needed for 15 chandeliers is 90.
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