Maya has to divide by 4, not subtract 4 <span>C:She did not divide 28 by 4. </span>
I'm not a hundred percent sure on this one. I think the answer is neither.
Answer:
$9426.50
Step-by-step explanation:
let noel's salary = x, robert's salary = y and john's salary = z
y = x - 512.75 ..........(1)
z = 3y = 3(x - 512.75) = 3x - 1538.25 ...............(2)
x + y + z = 47645.25..........................(3)
substitute for y and z
x + (x - 512.75) + (3x - 1538.25) = 47645.25
x + x - 512.75 + 3x - 1538.25 = 47645.25
5x = 47645.75 + 512.75 + 1538.25
5x = 49696.25
divide both sides by 5
x = 9939.25 ..... noel's salary
to get robert's salary substitute x in equation 1
y = 9939.25 - 512.75 = 9426.50
y = $9426.50..... robert's salary
Answer:
-14 or 13
Step-by-step explanation:
x + x^2 = 182
x^2 + x - 182 = 0
rearrange and solve by completing the square
x^2 + x = 182
x^2 + x + 1/4 = 182.25
(x + 1/2)(x + 1/2) = 182.25
(x + 1/2)^2 = 182.25
x + 1/2 = root 182.25
x = + or - root 182.25 - 0.5
x = + or - 13.5 - 0.5
x = 13 or x = - 14
:) There's no picture but I can solve this for you :)
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