Two trains leave stations 375 miles apart at the same time and travel toward each other. One train travels at 90 miles per hour while the other travels at 80 miles per hour. How long will it take for the two trains to meet?

פתרון

Tw o t r ain s l e a v e s t a t i o n s 375 mi l es a p a r t a t t h e s am e t im e an d t r a v e l t o w a r d e a c h o t h er . O n e t r ain t r a v e l s a t 90 mi l es p er h o u r w hi l e t h e o t h er t r a v e l s a t 80 mi l es p er h o u r . Ho w l o n g w i ll i t t ak e f or t h e tw o t r ain s t o m ee t ?

time : 2 \frac{7}{34}

צעדי פתרון

Translate the problem into an equation:

90 x + 80 x = 375

90 x + 80 x = 375, x

פתור בשביל:

x = \frac{75}{34}

הסב שבר מדומה למספר מעורב

time : 2 \frac{7}{34}