SOLUTION: A contractor is installing some special light bulbs for two floors in a building. For the first floor, she purchased 5 natural light bulbs and 2 ceiling bulbs at a cost of $23. For
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Question 1006263: A contractor is installing some special light bulbs for two floors in a building. For the first floor, she purchased 5 natural light bulbs and 2 ceiling bulbs at a cost of $23. For the second floor, she purchased 3 natural light bulbs and 4 ceiling bulbs at a cost of $25. How much does each type of bulb cost? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = cost of 1 natural bulb
Let = cost of 1 ceiling bulb
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(1)
(2)
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Multiply both sides of (1) by
and subtract (2) from (1)
(1)
(2)
----------------------
and
(1)
(1)
(1)
(1)
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A natural bulb costs $3
A ceiling bulb costs $4
