Hi,

Re: reply. One needs to solve the system of EQs by substitution to find x and y.

Write a system of two equations in two variables to solve each problem.

Let x and y represent amount saved at 8% and 9% respectively

    x  + y = $10,000    0r  x = $10,000 - y 

 .08x + .09y = $840

 .08(10,000 - y) + .09y = 840  |solving the system of EQs by substitution

             .01y = 840-800

              .01y = 40

                 y = $4000  and x = $6000 

RELATED QUESTIONS

A woman invested some money at 8% and some at 9% annual simple interest. The interest for  (answered by mananth)

Any assistance is greatly appreciated in advance.

Q: Write a system of two equations... (answered by rothauserc)

Write a system of two equations in two variables to solve the problem.

A woman... (answered by mananth)

an investment advisor invested 12000 into two accounts. one investment earned 7 % annual... (answered by checkley77)

Susan invests R45 000 at a simple interest rate of 6% per year. Two years later, she adds  (answered by )

An investment adviser invested $14,000 in two accounts. One investment earned 6% annual... (answered by ikleyn)

an invested 12000 i two accounts. one investment earned 7 % annual simple interest and... (answered by rfer)

a woman invested some money at 8% and some at 9%. the interest for 1 year on the combined  (answered by rwm)

an investment adviser invested $14000 in two accounts. one investment earned 8% annual... (answered by checkley71)