RandellHeimlicher RandellHeimlicher
  • 25-09-2015
  • Mathematics
contestada

What is the value of the expression? –13.7+(–5+2.7)
a. –21.4
b. –16
c. –11.4
d. –6

Respuesta :

Exvited
Exvited Exvited
  • 25-09-2015
-13.7 + (-5 + 2.7)

First, simplify -5 + 2.7 to -2.3 / Your problem should look like: [tex]-13.7 + -2.3[/tex]
Second, simplify to get rid of the addition. / Your problem should look like: [tex]-13.7 - 2.3[/tex]
Third, subtract. / Your problem should look like: [tex]-16[/tex]

Answer: -16 (B)

Answer Link
Аноним Аноним
  • 25-09-2015
[tex]-13.7+(-5+2.7)=-13.7+(2.7+(-5))\\\\=-13.7+(2.7-5)=-13.7+(-2.3)=-(13.7+2.3)\\\\=\boxed{-16}\leftarrow\boxed{b.}[/tex]
Answer Link

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