jayandrewgarza jayandrewgarza
  • 20-03-2018
  • Mathematics
contestada

If a = 8 and b = 4, then b(b+ a) - b =
A. 12
B. 20
C. 44
D. 52

Respuesta :

justinwatanabe3 justinwatanabe3
  • 20-03-2018
C. 44 is the answer 4(4+8)-4=44
Answer Link
Melanielolol
Melanielolol Melanielolol
  • 20-03-2018
Simple!
Okay first plug in the variables given to you.
4(4+8)-4=? Now lets solve.
First, in order to get rid of the paranthesis, multiply 4 by the numbers inside, which in this case are 4 and 8.
That will give us...
16+32-4. Now, remember PEMDAS?
Addition (A) comes before subtraction (S).
So lets add 16 and 32.
Thats 48.
Now 48-4= 44.
44 is our final answer (: so C
Answer Link

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