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Mathematics
OpenStudy (anonymous):

the heating automatically switches on when the temp outside is -4, one winters day the temp outside was 5oc, how much did it drop for heating to go on automatically..

OpenStudy (anonymous):

It keeps sayin am getting it wrong but i dont think i am is obvious

OpenStudy (anonymous):

\[-4^oC\] <<-- is when the thermostat turns on the heat? If so, and if the current temperature is \[5^oC\], then the temperature has to fall 9 degrees Celsius before the heat comes on.

OpenStudy (anonymous):

i was writing that in thank u

OpenStudy (anonymous):

OK, feel free to drop in with your questions anytime. :-)

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