Evaluating expressions involve solving and simplifying the expression
- The result of [tex]\mathbf{-12 - 27}[/tex] is -39
- The result of [tex]\mathbf{8 + 53 * 0.4 - ( 23-3.2)}[/tex] is 9.4
The expressions are given as:
[tex]\mathbf{(a)\ -12 - 27}[/tex]
[tex]\mathbf{(b)\ 8 + 53 * 0.4 - ( 23-3.2)}[/tex]
[tex]\mathbf{(a)\ -12 - 27}[/tex]
Subtract 27 from -12
[tex]\mathbf{-12 - 27 = -39}[/tex]
Hence, the result of [tex]\mathbf{-12 - 27}[/tex] is -39
[tex]\mathbf{(b)\ 8 + 53 * 0.4 - ( 23-3.2)}[/tex]
Start by evaluating the expression in brackets
[tex]\mathbf{8 + 53 * 0.4 - ( 23-3.2) = 8 + 53 * 0.4 - 19.8}[/tex]
Evaluate the products
[tex]\mathbf{8 + 53 * 0.4 - ( 23-3.2) = 8 + 21.2 - 19.8}[/tex]
Add and subtract
[tex]\mathbf{8 + 53 * 0.4 - ( 23-3.2) = 9.4}[/tex]
Hence, the result of [tex]\mathbf{8 + 53 * 0.4 - ( 23-3.2)}[/tex] is 9.4
Read more about evaluating expressions at:
https://brainly.com/question/1041084
