Algebra 1, Interest

Algebra
Tutor: None Selected Time limit: 1 Day

zoya invested part of her $25000. advance at 8% annual simple interest and the rest at 9% annual simple interest.  if her total yearly  interest from both accounts 2135, find the amount invest at each rate.

Dec 7th, 2014

0.08 X + 0.09Y = 2135

X + Y = 25000

0.08X + 0.09 ( 25000 - X ) = 2135

=> 0.08X - 0.09X = 2135 - 2250

=> X = $11500

=> Y = $13500

Answer : Zoya invested $11500 in the 8% interest account and $13500 in the 9% interest account.

Dec 7th, 2014

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