SOLUTION: type a, type b, and type c light bulbs are lasting longer today than ever before. on average, the number of bulb hours for a type c bulb is 18 times the number of bulb hours for a
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Question 1019627: type a, type b, and type c light bulbs are lasting longer today than ever before. on average, the number of bulb hours for a type c bulb is 18 times the number of bulb hours for a type b bulb. the number of bulb hours for a type a bulb is 1600 less than the type b bulb. if the total number of bulb hours for the three types of light bulbs is 78,400, find the number of bulb hours for each type.
type a----
type b----
type c----
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let 
represent the number of hours for type b. Then the number of hours for type a is 
and the number of hours for type c is 
. You are given that:
\ +\ x\ +\ 18x\ =\ 78400)
Solve for , then calculate and .
John
My calculator said it, I believe it, that settles it
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