Answer:
x = 111°
Step-by-step explanation:
180 x (7 - 1) - (120 + 158 + 126 + 125 + 121 + 139) =
900 - 789 = 111
If Fred's height is f cm, then Lisa's height is ____cm.Lisa's height is F+2
So in matt's equation, he made a mistake in the a transision from line 2 to line 3
in line 2: -4(-2)2
in line 3: -4(4)
the mistake is that -2 times 2 is not equal +4 it is equal to -4
also from lines 5 to 6 he made a mistake in order of opperations (mulit division then addition and subtract)
line 5: -10+30/5
line 6: 20/5
so he first subtracted 10 then divided, he should have divided then subtracted
so the equation should have equaled
Karen used the correct (-) times (+) property and the order of operations
so Karen is correct and Matt is wrong.
The last 2 y”s are identical
