Two trains leave the same station, one east at 50 mph, one west at 60 mph. After how many hours are they 275 mi apart?
- A
- B
- C
- Dcheck_circle
Explanation
Combined speed mph; h.
Linear Equations in Two Variables
SAT Math· difficulty 4/5
Want 10 more like this — adaptive to your weak spots?
Related questions
- sat-math-alg4-052
A car drives 60 mph for 2 hours then 40 mph for 3 hours. Average speed for the trip:…
chevron_right - sat-math-alg4-042
A 6% milk fat solution mixed with 1% milk fat. To get 10 L at 4%, how much 6% milk is needed?…
chevron_right - sat-math-alg4-031
A 30% saline solution is mixed with 70% saline. To make 10 L of 50% saline, how much 30% solution is needed?…
chevron_right