Greghairston5675 Greghairston5675

18-07-2017
Physics

contestada

Two trains going in opposite directions leave at the same time. train b travels 2020 mph faster than train

a. in 88 hours the trains are 960960 miles apart. find the speed of each.

Respuesta :

jorel1380 jorel1380

18-07-2017

I'm assuming a typo here, where all of the figures are typed twice. So let the speeds of the trains be n and n+20. Then:
8n+8(n+20)=960
16n=800
n=50
n+20=70
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