SOLUTION: What is the value of 3|x| - 5|y| if x = –7 and y = –11? (A) –76 (В) -34 (C) –4 (D) 34 (E) 76

Algebra ->  Absolute-value -> SOLUTION: What is the value of 3|x| - 5|y| if x = –7 and y = –11? (A) –76 (В) -34 (C) –4 (D) 34 (E) 76      Log On


   



Question 252999: What is the value of 3|x| - 5|y| if x = –7 and y = –11?
(A) –76 (В) -34 (C) –4 (D) 34 (E) 76

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
3%2Aabs%28x%29-5%2Aabs%28y%29 Start with the given expression.


3%2Aabs%28-7%29-5%2Aabs%28-11%29 Plug in x=-7 and y=-11


3%2A%287%29-5%2A%2811%29 Take the absolute value of -7 to get 7. Take the absolute value of -11 to get 11.


21-55 Multiply


-34 Subtract


So 3%2Aabs%28x%29-5%2Aabs%28y%29=-34 when x=-7 and y=-11