SOLUTION: Lea invests some amount at 4% per year and equal amount of 5%per year. Her income totals 8100 pesos a year. Howmuch did she invest at each rate?

SOLUTION: Lea invests some amount at 4% per year and equal amount of 5%per year. Her income totals 8100 pesos a year. Howmuch did she invest at each rate?

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Question 1020664: Lea invests some amount at 4% per year and equal amount of 5%per year. Her income totals 8100 pesos a year. Howmuch did she invest at each rate?
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
.04n+.05n=8100
.09n=8100
n=8100/.09=90000
Lea invested 90000 pesos each at 4% and 5% ☺☺
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