Question 330049
Let A be the amount in bonds, B the amount in mortgage.
1{{{A+B=8600}}}
2.{{{5A+8B=60000}}}
From eq. 1,
{{{A=8600-B}}}
Substitute into eq. 2,
{{{5(8600-B)+8B=60000}}}
{{{43000-5B+8B=60000}}}
{{{3B=17000}}}
{{{B=5666.67}}}
Then from eq. 1,
{{{A+5666.67=8600}}}
{{{A=2933.33}}}