Post a New Question

math

posted by on .

you have an unlimited supply of 5% saline solution and 8% saline solution. How much of each type would you have to use to create 60 ounces of 7% saline solution? Write and solve a system of equations to model and solve this problem.

  • math - ,

    amount of 5% solution used --- x
    amount of 8% solution used --- 60-x

    .05x + .08(60-x) = .07(60)
    times 100
    5x +8(60-x) = 420
    5x + 480 - 8x = 420
    -3x = -60
    x = 20

    20 ounces of the 5% solution and 40 ounces of the 8% solution.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question