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Jaoquin buys 3 dozen lightbulbs. After changing the lightbulbs in his house, he has 15 lightbulbs left. How many lightbulbs did he use? Explain your work. I need the help like right now!!
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Jaoquin buys 3 dozen lightbulbs. After changing the lightbulbs in his house, he has 15 lightbulbs left. How many lightbulbs did he use? Explain your work. I need the help like right now!!

User Mohammad Aghayari
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1 Answer

4 votes
1 dozen = 12
3 dozens = 3×12=36
Bulbs left=36-15
=21
The answer is 21 bulbs.
Hope it helps!
User Sebastien Windal
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