If Marisa hiked a distance of 1 3/4 miles in a time of 3/4 hours we can determine her speed as miles per hour. Speed is defined as the distance(d) per time(t). Let speed equal to v:
(1 3/4) / (3/4) = x / 1.....1 3/4 miles to 3/4 hrs = x miles to 1 hr cross multiply (3/4)(x) = (7/4)(1) 3/4x = 7/4 x = 7/4 * 4/3 x = 28/12 x = 2 1/3 miles in 1 hr <==