Question 1196959
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Makana invested at the rate x (decimal) per year.

Marlys invested at the rate (x-0.01) per year.


Write equation for the Marlys interest

   450*(x-0.01) = 27.


From this equation

    x - 0.01 = {{{27/450}}} = 0.06.


Thus, the Marlys rate is 0.06, or 6% per year.

Hence, the Makana rate is 0.07, or 7% per year.


It means that Makana earns 0.07*500 = 35 dollars in a year from his/(her) investment of $500.    <U>ANSWER</U>
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Solved.