Question

john needed 13.71 feet of wire to fix a lamp he bought 14 half feet of wire how much did he have left ver​

Answer 1

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➷ Just subtract the two values:

14.5 - 13.71 = 0.79

He had 0.79 feet of wire left

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Answer 2

If he had 4 half feet of wire, then he would have 7 feet of whole wire.

To find out how much more wire he needs, subtract how much he has so far from how much he totally needs.
13.71-7=6.71
He needs 6.71 more feet of wire.

Hope this helps!