Question
Jill's age 5 years ago was 4 less than 3 times barry's current age. if the product of their ages now is 200, what is each of their current ages?
Answers
PsyDAG
J = 200/B
J-5 = 3B - 4
Substitute 200/B for J in the second equation and solve for B. Insert that value into the first equation to solve for J. Check by putting both values into the second equation.
J-5 = 3B - 4
Substitute 200/B for J in the second equation and solve for B. Insert that value into the first equation to solve for J. Check by putting both values into the second equation.