Math, asked by tripathisamarth84, 5 hours ago

The temperature was (-15) degrees Fahrenheit at 6:00 am. The temperature rose 4 degrees Fahrenheit every hour until 12:00 pm. At what time did the temperature reach 1 degree Fahrenheit?
pls anyone anser

Answers

Answered by amitnrw
2

Given :  The temperature was (-15) degrees Fahrenheit at 6:00 am.

The temperature rose 4 degrees Fahrenheit every hour until 12:00 pm.

To Find :  At what time did the temperature reach 1 degree Fahrenheit?

Solution:

-15° F  temperature at 6 : 00 AM

The temperature rose 4 degrees Fahrenheit every hour  

Hence

F( T)  =  -15 +  4T

T = Time in hrs from  6 : 00 AM

F(t) = Temperature after  T hrs from 6 : 00 AM

temperature reach 1 degree Fahrenheit

=>  F(t) = 1

=> 1  = -15 + 4T

=> 16 = 4T

=> T = 4

4 hrs from   6 : 00 AM

=> 6 + 4 = 10   AM

At 10 AM  the temperature reach 1 degree Fahrenheit

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