Jessica wants to invest $40,000 in two accounts. The annual returns

of the accounts are 8% and 6% of her investment. Jessica would like to have an
annual return of $2,500 from her two investments. Set up, but do not solve,
the set of linear equations that will determine how much she should invest in each
account. Be sure to include a well written definition of the variables.

you define the variables, so that

x+y = 40000
.08x + .06y = 2500