If x dollars is invested at 10 percent for one year and y dollars is invested at 8 percent for one year, the annual income from the 10 percent investment will exceed the annual income from the 8 percent investment by $56. If $2,000 is the total amount invested, how much is invested at 10 percent?
Answers.
A) a. $280
B) b. $800
C) c. $892
D) d. $1108
E) e. $1200
2 equations with 2 unknowns   10x / 100 - 8y / 100 = 56   and   x + y = 2000   Solving these 2 equations, x = 1200 and y = 800   Answer e. $1200.
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If x dollars is invested at 10 percent for one year and y dollars is invested at 8 percent for one year, the annual income from the 10 percent investment will exceed the annual income from the 8 percent investment by $56. If $2,000 is the total amount invested, how much is invested at 10 percent?