X= -10
You may review the image Ive attached to see how I got this answer.
6/10 of an inch= 0.6
7 (times) 0.6 (equals) 4.2
<span>The two checkpoints are 4,920 ft. apart from each other. The total distance of the race is 15,840 ft. If checkpoint C half the distance between checkpoint B and the end of the race, the distance between Checkpoint B and the end of the race is 9,840 ft. Half of that distance is 4,920 ft.</span>