anonymous
  • anonymous
It took Smedly 5 and 3/4 hours to climb to the top of the mountain it took 3 and 1/4 hours to climb down if he spent 1 and1/2 hours at the top how long did the climb take? And explain please
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
(5 + 3/4 ) + (3 + 1/4 ) = 9 hr (9 hr ) + (1 + 1/2 hr) = 10 and 1/2 hr
anonymous
  • anonymous
Thanks guys
anonymous
  • anonymous
\[Time_{total} = Time_{up} + Time_{resting} + Time_{down}\] \[=5 + 3/4 + 3 + 1/4 + 1 + 1/2\] Since we are free to move around terms in a sum... \[=(5+3) + (3/4 + 1/4) + 1/2\] \[= 8 + 4/4 + 1/2\] \[= 8 + 1 + 1/2\] \[= 9 + 1/2\] Therefore the trip took 9 and 1/2 hours.

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anonymous
  • anonymous
Ack. I forgot a 1. Should be 10 and a half.
anonymous
  • anonymous
5 + 3 + 3/4 +1/2 = 9hr
anonymous
  • anonymous
Ok!
anonymous
  • anonymous
Also I had the times in the wrong order. But did you understand what I meant?
anonymous
  • anonymous
Yes thanks

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