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i have seen explanations but i still dont get it :/

 

http://prntscr.com/mfqobt

 Feb 2, 2019
 #1
avatar+98153 
+1

OK.....not as difficult as you might think

 

If the temperature rose 1/2° per hour from 8 AM to noon....the teperature at noon must have been

 

49 +  (1/2)(4hours)  =   

 

49 + (1/2)(4)  =

 

49 + 2  =

 

51°  =  the temp at noon

 

 

From there,  it fell 1°  per hour

So....at 1PM it was 50°

At 2PM it was 49°

At 3 PM it was 48°

 

So....it must have fallen below 49° sometime between  2PM and 3PM....

 

See???...not too bad...!!!

 

 

cool cool cool

 Feb 2, 2019
edited by CPhill  Feb 2, 2019
 #2
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+1

OMG THANK YOU 

 Feb 2, 2019

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