A carpenter has three sheets of plywood that are each 6.85 feet long. A 3.4-foot piece is cut from one sheet and 0.5-foot piece is cut from another sheet. How many feet of plywood is left in all?

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Answer 1 · 2017-11-21T05:37:25

16.65 feet

Okay, we have three boards that are each 6.85 feet long. If we cut 3.4 feet off one board, that board has:

$6.85-3.4=3.45$ feet left

If we cut off 0.5 feet off another board, that board has:

$6.85-0.5=6.35$ feet left

So, if we take our three new boards, the total length of plywood left is:

$6.85+3.45+6.35=16.65$ feet

Hope this helps!