Question 935747
x = amount invested at 8%
y = amount invested at 9%
z = amount invested at 7.5%
---
x + y + z = 10000
0.08x + 0.09y + 0.075z = 814
y = 2z
---
put the system of linear equations into standard form
---
x + y + z = 10000
0.08x + 0.09y + 0.075z = 814
y - 2z = 0
---
copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
solution:
x = amount invested at 8% = 7200.00
y = amount invested at 9% = 1866.67
z = amount invested at 7.5% = 933.33
---
Free algebra tutoring live chat:
https://sooeet.com/chat.php?gn=algebra
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations with quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
---