SOLUTION: Mark invested $1500;part at 5%and part at 7%.Question 1... Mark earned $504 interest on an investment at 5% and another at 7%.Number 2.

Question 179759: Mark invested $1500;part at 5%and part at 7%.Question 1...
Mark earned $504 interest on an investment at 5% and another at 7%.Number 2.
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
thats better!!!!
:
let x and y be the amounts invested at 5% and 7% respectively
:
x+y=1500..............eq 1
.05x+.07y=504.........eq 2
:
this is the way this problem would be written up .But there is a problem
:
The scenario as written is IMPOSSIBLE
:
1500 at 5% is 75 dollars
1500 at 7% is 105 dollars
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as you can see no combination of money invested in this scenario will come close to 504 dollars
:
and 15000 would be too much.
:
please re check the question again and submit it as it reads:
thanks Mathtut

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