Question

Carla traveled for 2 hours toward Dave, who was also traveling toward her. Dave took 3 hours, and went 15 mph slower. They started 290 miles apart. How fast did Carla travel?
Answer 58 mph
67 mph
61 mph
51 mph

Answer 1

Develop two equations that fit the wording of the problem:\[2(V_{Carla})+3(V_{Dave})=290mi\]\[V_{Dave}=V_{Carla}-15\]

Substite the right side of the second equation into the first:
\[2(V_{Carla})+3(V_{Carla}-15)=290mi\]
Solve for Carla's V...

Answer 2

i must have done something wrong