Answer:
$110
Step-by-step explanation:
Let a, b, and c represent the earnings of Alan, Bob, and Charles. The problem statement tells us ...
a + b + c = 480 . . . . . . the combined total of their earnings
-a + b = 40 . . . . . . . . . . Bob earned 40 more than Alan
2a - c = 0 . . . . . . . . . . . Charles earned twice as much as Alan
Adding the first and third equations, we get ...
(a + b + c) + (2a - c) = (480) + (0)
3a + b = 480
Subtracting the second equation gives ...
(3a +b) - (-a +b) = (480) -(40)
4a = 440 . . . . . . . . simplify
a = 110 . . . . . . . . . . divide by the coefficient of a
Alan earned $110.
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<em>Check</em>
Bob earned $40 more, so $150. Charles earned twice as much, so $220.
The total is then $110 +150 +220 = $480 . . . . as required
Neither...
205/1000 equals .205
So they are both the same.
Hope this helps -J
The answer is c bye i am happy i could help
Answer:
x=-1
Step-by-step explanation:
-12=-12(x+12)
multiply -12 and x which equals -12x
multiply -12 and 2 which equals -24
the resulting equation is -12=-12x-24
add 24 on both sides of the equation----> equals -12x=12
divide -12 on both sides of equation
x=-1
