Devon is going to make 3 shelves for her father. He has a piece of lumber 12 feet long. She wants the top shelf to be half a foot shorter than the middle shelf, and the bottom shelf to be half a foot shorter than twice the length of the top shelf. How long will each shelf be if she uses the entire 12 feet of wood?

asked by Art A

3 years ago

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1 answer

If the top shelf has length x, then
x + (x + 1/2) + (2x - 1/2) = 12

answered by oobleck

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Question

Devon is going to make 3 shelves for her father. He has a piece of lumber 12 feet long. She wants the top shelf to be half a foot shorter than the middle shelf, and the bottom shelf to be half a foot shorter than twice the length of the top shelf. How long will each shelf be if she uses the entire 12 feet of wood?

1 answer

If the top shelf has length x, then
x + (x + 1/2) + (2x - 1/2) = 12

oobleck · Accepted Answer

If the top shelf has length x, then x + (x + 1/2) + (2x - 1/2) = 12