Let x represent the number of weeks, then w<span>ithdrawing $10 every week from a perfect balance of $400</span> can be represented as an expression as follows:
400 - 10x
Answer:
C) 16, 6
Step-by-step explanation:
- Set AB and DC equal to eachother. 4x = x + 12.
- Subtract x from both sides. 3x = 12
- Divide by 3 to get x alone. x = 4
- Plug this x value in the equation for AB. 4•(4) = 16
- We know the AD equals 6, so that will be one of the values and we now know that AB equals 16.
See Quadratic Formula and Determinant's/Delta's formula
