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Lorico [155]
4 years ago
12

3 h 6 min 45 sec+8h 55 mins 20 sec

Mathematics
2 answers:
NNADVOKAT [17]4 years ago
7 0
Convert them both to minutes to get: 186 mins and 45 sec + 535 mins and 20 sec

Add to get: 772 mins and 5 sec
prohojiy [21]4 years ago
6 0

   3 hours . . . 6 minutes . . . 45 seconds
+ 8 hours . . 55 minutes . . . 20 seconds
  ________________________________
 11 hours . . 61 minutes . . . 65 seconds

But 65 seconds = 1 minute . . . 5 seconds

 11 hours . . 62 minutes . . . 5 seconds

But 62 minutes = 1 hour . . . 2 minutes

 12 hours . . 2 minutes . . . 5 seconds


I think this is regrouping, but with 60s instead of 10s.



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y=mx+b

We have to first find the slope and plug it into point-slope form.

y-y1=m(x-x1)

Find the slope of the second line. (I did this one first on accident)

Rise/run= 3/1= 3 The slope is 3. Plug that in along with the point (0,3)

y-3=3(x-0)
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Add 3 to the other side.

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Now, the second.

rise/run= 1/2= .5 Use point (6,0)

y-0=.5(x-6)
y= .5x-3 

y=.5x-3 <- for the first line

I hope this helps!
~kaiker




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