Answer:
The two expressions are;
1) -8 ft. + 3 × 6 ft. = 12 feet
2) -6 ft. + 2 × 5 ft. + 8 ft. = 12 feet
Step-by-step explanation:
The given parameters are;
The lengths in feet Cecil can travel = 5 feet, 6 feet, and 8 feet
The distances Cecil can travel forward = (positive 5, 6, 8)
Backwards Cecil can travel distances of (-5, -6, -8)
Cecil can go forward past the ladder and return back
Therefore, the number expressions by which Cecil can cross a tightrope 12 feet long are;
1) -8 ft. + 3 × 6 ft. = 12 feet
Which is to go back 8 feet and then to go forward 6 feet three times
2) -6 ft. + 2 × 5 ft. + 8 ft. = 12 feet
Which is to go back 6 feet then to go forward in 5 feet two times and then in forward again in 8 feet.
