Question 42159
An {{{x}}} amount of money will be invested in 7.5% and the rest, {{{7003 - x}}} will be invested is 8.5% ....
{{{y = (x)(0.075) + (7003 - x)(0.085)}}} where {{{y}}} equals total amount of interest and Interest=Principle*Rate*Time
{{{582.33 = (x)(0.075) + (7003 - x)(0.085)}}}
{{{582.33 = 0.075x + 595.255 + 0.085x}}}
{{{-12.925 = 0.16x}}}
{{{-80.78125 = x}}}
You can not place a negative amount of cash in an account, so there is no way.
The linear Equations:
{{{y = 0.16x + 595.255}}}
and
{{{y = 582.33}}}
{{{ graph( 1000, 1200, -100, 20, -10, 600, 0.16x + 595.255, 582.33) }}}