Complete the table below.

Liters of solution
Percent​ (as a​ decimal)
Liters of pure dye
x
0.20
  
0.20 x
y
0.59
  
0.59 y
260
0.50
  
130
​(Simplify your answers. Use integers or decimals for any numbers in the​ expression.)
Part 2
To get 260 L of a 50​% ​solution,
  
enter your response here liters of the 20​% solution and
  
enter your response here liters of the 59​% solution are needed.

1 answer

To complete the table and find the volumes of the 20% and 59% solutions needed to create 260 liters of a 50% solution, we can use the following equations based on the information provided.

Part 1: Completing the table

  1. For the 20% solution:

    • Liters of solution: x
    • Percent (as a decimal): 0.20
    • Liters of pure dye: 0.20x
  2. For the 59% solution:

    • Liters of solution: y
    • Percent (as a decimal): 0.59
    • Liters of pure dye: 0.59y
  3. For the final solution:

    • Total liters of solution: 260
    • Percent (as a decimal): 0.50
    • Liters of pure dye: 0.50 × 260 = 130

Part 2: Setting up the equations

  1. The total amount of solution equation: \[ x + y = 260 \]

  2. The total amount of pure dye equation: \[ 0.20x + 0.59y = 130 \]

Solving the equations

From the first equation, isolate \( y \): \[ y = 260 - x \]

Substituting \( y \) in the second equation: \[ 0.20x + 0.59(260 - x) = 130 \]

Expanding the equation: \[ 0.20x + 153.4 - 0.59x = 130 \] \[ -0.39x + 153.4 = 130 \] \[ -0.39x = 130 - 153.4 \] \[ -0.39x = -23.4 \] \[ x = \frac{-23.4}{-0.39} \approx 60 \]

Now substituting back to find \( y \): \[ y = 260 - 60 = 200 \]

Final Results

  • Liters of the 20% solution (x): 60 liters
  • Liters of the 59% solution (y): 200 liters

So in response to your inquiry:

  • Enter 60 liters of the 20% solution.
  • Enter 200 liters of the 59% solution.

Completed Table

| Liters of solution | Percent (as a decimal) | Liters of pure dye | |--------------------|-----------------------|---------------------| | x | 0.20 | 0.20x (12) | | y | 0.59 | 0.59y (118) | | 260 | 0.50 | 130 |

(Simplified to integers or decimals as required.)