SOLUTION: Adrienne invested a total amount of 100,000Php in banks A and B with an interest rate of 5% and 8% respectively. If the income from bank B is 800 more than twice the income from ba

Question 1092038: Adrienne invested a total amount of 100,000Php in banks A and B with an interest rate of 5% and 8% respectively. If the income from bank B is 800 more than twice the income from bank A, how much was invested to bank B?
Answer by ikleyn(52908) (Show Source): You can put this solution on YOUR website!
.

Your equation is

0.08*(100000-A) - 2*0.05*A  = 800


where A is amount invested in Bank A at 5%.


Simplify and solve for A.

To see how to solve many other similar problems, look into the lesson
- Using systems of equations to solve problems on investment
in this site.

Also, you have this free of charge online textbook in ALGEBRA-I in this site
- ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Systems of two linear equations in two unknowns".

Save the link to this online textbook together with its description

Free of charge online textbook in ALGEBRA-I
https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson

to your archive and use it when it is needed.

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