SOLUTION: Caroline covers 1200 miles on her business trip driving on a combination of snowy roads and ice-free ploughed roads one winter. Her average speed on the snowy roads is 40 mph while
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Question 399194: Caroline covers 1200 miles on her business trip driving on a combination of snowy roads and ice-free ploughed roads one winter. Her average speed on the snowy roads is 40 mph while she maintains 60 mph on the ice-free pavement. If her driving time on the snowy road is 1/4 times that of the ice free road, how many hours has elapsed since Caroline left home?
**I can probably solve this if it is put into an equation. I am good at equations but for some reason have trouble making equations out of paragraphs. Thank you.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Caroline covers 1200 miles on her business trip driving on a combination of
snowy roads and ice-free ploughed roads one winter.
Her average speed on the snowy roads is 40 mph while she maintains 60 mph on the ice-free pavement.
If her driving time on the snowy road is 1/4 times that of the ice free road,
how many hours has elapsed since Caroline left home?
:
Let t = time on snowy roads
then
4t = time on clear roads
;
Write a distance equation: Dist = speed * time
:
snow dist + clear dist = 1200 miles
40t + 60(4t) = 1200
:
this is the equation, her total time would be 5t, wouldn't it
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