Anna asks her broker to divide her investment of $2000 among three funds, X, Y, and Z. She decides that her investment in X should be twice her investment in Z. During the first quarter, X earned 4.5%, Y earned 2.6%, and Z lost 0.2%. Anna earned $58 on her investment during that period. How many dollars did the broker put into each fund?

Question

welshfella · Answer

Let z be the amount he invested in fund Z
so there is 2z dollars in fund X and (2000 - 3z) dollars in fund Y.
we get the equation 

0.045(2z) - 0.002z + (2000 - 3z)0.026 = 58

solve this for z

welshfella · Answer

0. 09z - 0.002z + 52 - 0.078z = 58

can you continue?