Post a New Question

Math

posted by .

Find the ages of John and Mary if four times John's age equals three times Mary's age, and Mary is ten years older than John.

  • Math -

    M = J + 10

    4J = 3M

    Substitute J+10 for M in second equation and solve for J. Insert that value into the first equation and solve for M. Check by inserting both values into the second equation.

  • Math -

    J= 120
    M= 130

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question