MA 153
Lesson 8 Outline
Answering of homework questions over lesson 7.
Lesson 8
Section 2.2 Applications
Example:
Kathy invested $50,000 into two different accounts.
One account earns 7% simple
interest and the other pays 5% simple interest.
How much is invested in each account if
the total interest for one year was $3250?

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Example:
(Mixing chemicals)
A chemist is to prepare 90 liters of a 42% brine solution.
He only has a 30% brine
solution and a 57% brine solution available.
How much of each type of solution should
be used to end up with 90 liters of a 42% solution?