Question

Car B is traveling east on the same road. Its distance east of Johnstown is represented by the graph. Miles east of Johnstown 200 180 100 10 120 160 00 00 20 Z 9 10 Time (hours) Where were the two cars in relation to each other when they began traveling? A. Car A was 10 miles east of car B. B. Car B was 10 miles east of car A. C. Car A was 30 miles east of car B. D. Car B was 20 miles east of car A

Answer 1

according to the graph when car B started it was 20 miles from Jhonstown

the Car A aftter 2 hours its 150 miles from johnstown but the speed is 60 per hour so in 2 hours toured 120 and the position is 150

So when it started, it was 30 miles ahead

we can substract the initial distance of two cars to find the relation

so

`30-20=10`

the car A was 10 miles east of car B, because A is ahead