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inn [45]
3 years ago
5

Ryan and karl spent 14 hours building a treehouse. ryan worked 1 less than twice karls hours. how many hours did each work?

Mathematics
1 answer:
Fittoniya [83]3 years ago
3 0
Karl:  k hours
Ryan:  r hours

r+k=14 hrs
r = 2k-1 hrs

Then (2k-1) + k = 14 hours; 3k -1 = 14 hours;   3k = 15 hours; k = 5 hours.

Karl worked 5 hours; Ryan worked 2(5 hours) -1 hour = 9 hours.
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