anonymous
  • anonymous
I need help someone!!!!!! Gold medal is waiting. you are a research chemistry for your experiment; the temperature of water bath needs to be 37 degrees celsius.The temperature gauge shows that it is currently 20 celsius.if you set the heater on the bath so the temperature rises 3 celsius every 15 minutes, about how long will it take for the water bath to reach the required temperature?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Vocaloid
  • Vocaloid
set up a proportion
Vocaloid
  • Vocaloid
first find out how many degrees the temperature needs to rise
Vocaloid
  • Vocaloid
still there?

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anonymous
  • anonymous
yes sorry, i'm working it out now and will show you if itsc orrect
anonymous
  • anonymous
ok soi did it like this...
anonymous
  • anonymous
|dw:1444501800294:dw|
Vocaloid
  • Vocaloid
not quite
Vocaloid
  • Vocaloid
the final temperature is 37, but we start at 20. so how many degrees does it need to increase by?
Vocaloid
  • Vocaloid
(hint: replace "37" with "37-20" in your proportion and solve for x)
Vocaloid
  • Vocaloid
|dw:1444502097676:dw|
anonymous
  • anonymous
oh isee ok hold on a sec
anonymous
  • anonymous
|dw:1444502187743:dw|
anonymous
  • anonymous
so an 1hr and 42 min
Vocaloid
  • Vocaloid
uh, not quite.
Vocaloid
  • Vocaloid
|dw:1444502316614:dw|
Vocaloid
  • Vocaloid
|dw:1444502343151:dw|
anonymous
  • anonymous
yes i got 85 minutes
Vocaloid
  • Vocaloid
right, and 85 minutes = 1 hr and 25 minutes
Vocaloid
  • Vocaloid
(there are 60 minutes in one hour)
anonymous
  • anonymous
yes true. i guess i'm usedto o ver doing a problem lol. thanks for your help :)

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