Evaluate the expression, using the given value of the variable.

z ÷ 3 – 5z + 4(z – 2) when z = 12

A. –16

B. –96

C. –14

D. –98

Question

Evaluate the expression, using the given value of the variable.

z ÷ 3 – 5z + 4(z – 2) when z = 12
 
 A. –16
 
 B. –96
 
 C. –14
 
 D. –98

jigglypuff314 · Answer

for z ÷ 3 – 5z + 4(z – 2) when z = 12
you would plug in 12 for z into z ÷ 3 – 5z + 4(z – 2)
so you get  (12) / 3 - 5(12) + 4(12 - 2)
and remember PEMDAS!

anonymous · Answer

so would the answer be D?

anonymous · Answer

oh no i meant B

jigglypuff314 · Answer

hmm... that's not what I got?
(12) / 3 - 5(12) + 4(12 - 2)   Parenthesizes first
(12) / 3 - 5(12) + 4( 10 )       then  Multiply and Divide
    4      -   60  +  40

anonymous · Answer

and 4 -100= -96

jigglypuff314 · Answer

ah, right...
PEMDAS
for Multiplication/Division and Addition/Subtraction
you do it from left to right
so  4 - 60  +  40
       -56 + 40
           -16