The total length of 3 pieces of rope is 3 1/2 feet. The first pieces of rope is 1 3/4 feet long. The second piece of rope is 7/8 feet long. What is the length of the third piece of rope?

 feet

Step-by-step explanation:

Total length of the 3 pieces of rope = feet.

Length of the first piece of rope = feet.

Length of the second piece of rope =  feet.

Let the length of the third piece = x

Lets multiply all through by the LCM of 2, 4 and 8 which is 8

14+7+8x=28

21+8x=28

8x=28-21

8x=7

The length of the third piece is  feet

can you add an image ?

step-by-step explanation:

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