Marcus had a rope that was 75 feet long. He cut off part of the rope. After that, the rope was 56 feet long.

Question

If f= the number of feet Marcus cut off the rope, which mathematical sentence expresses the information above?
75 - f = 56
56 - f = 75
f-75 = 56
75 + f=56

Answer 1

The correct mathematical sentence that expresses the information provided is:

\[ 75 - f = 56 \]

This equation states that if you subtract the length of the part cut off (f) from the original length of the rope (75 feet), you will get the remaining length of the rope (56 feet).