Question 846037
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Hi,
If jake has $$20,000 to invest in two accounts.
 With one account with amount{{{ highlight_green(x)}}} earns 1% simple interest.
 And second account with amount{{{ highlight_green(y)}}}earns 3%. 
 x + y = 20,000    0r  x = ($20,000 - y)
Question states***earn exactly &450.00 at the end of the year
 .01($20,000-y) + .03y = 450
 .01($20,000) - .01y + .03y = 450
  $200 - .01y + .03y = 450
                     .02y = 250
                        y = {{{250/.02) = $12,500,  x = $7,500
CHECKING our answer***
{{{.01*7500 + .03*12500}}} = $75 + $375 = $450
Wish You the Best in your Studies.