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OpenStudy (anonymous):
Evaluate the expression below. -8 (2 + 2) + 20 ÷ 4 =
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OpenStudy (carniel):
Srry thought it was going to do it how I did it :P Answer -27
OpenStudy (jlastino):
Observe PEMDAS (Do the following operations in order: The ones inside the parentheses, multiplication/division (whichever goes first) then addition and subtraction. Just like what Carniel did
OpenStudy (anonymous):
i did it I have -27 also
OpenStudy (carniel):
Yea =)
OpenStudy (carniel):
-8 (2+2)+20 / 4: -8 (4)+20/4 : -32+20/4 : -32+5: -27
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Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
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EdwinJsHispanic:
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