Charlie says to mia, "if you give me $9.00, we will have an equal amount of money." mia responds, "that may be true, but if you give me $9.00 instead, i will have twice as much money as you." how much money did charlie and mia each have in the beginning?

Step-by-step explanation:

The two descriptions can be written as two equations. We can let "m" and "c" represent the amounts that Mia and Charlie have to begin with. Then ...

  m -9 = c+9 . . . . . equal amounts if Mia gives Charlie $9

  m +9 = 2(c -9) . . Mia has double if Charlies gives Mia $9

Subtracting the first equation from the second gives ...

  (m +9) -(m -9) = (2(c -9)) -(c +9)

  18 = c -27 . . . simplify

  45 = c . . . . . . add 27

Substituting into the first equation, we have ...

  m -9 = 45 +9

  m = 63 . . . . . . . add 9 and simplify

Charlie and Mia started with $45 and $63, respectively.

10

step-by-step explanation:

7+3=10

step-by-step explanation:

which of the following statements correctly describes the expression below based on its degree and number of terms?

314 - 7x2 + 11