emsoccer325
emsoccer325 emsoccer325
  • 08-05-2015
  • Mathematics
contestada

3.1 × 22 + 6 ÷ 2 - (3.9 + 3.3)

Respuesta :

iGreen
iGreen iGreen
  • 08-05-2015
[tex]\sf3.1\times22+6\div2-(3.9+3.3)[/tex]

PEMDAS, parenthesis first:

[tex]\sf3.1\times22+6\div2-7.2[/tex]

Now multiply:

[tex]\sf68.2+6\div2-7.2[/tex]

Divide:

[tex]\sf68.2+3-7.2[/tex]

Add:

[tex]\sf71.2-7.2[/tex]

Subtract:

[tex]\sf64[/tex]
Answer Link
ReahCharlotte
ReahCharlotte ReahCharlotte
  • 08-05-2015
You have to use PEMDAS which is Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. The answer would be 29.9.
Answer Link

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