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Sandy will get $6120 more if her salary is increased by 12%. Sandy's salary is 15% less of her colleague Sonia's salary. What is Sonia's salary?

 Mar 9, 2019
 #1
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Sandy will get $6120 more if her salary is increased by 12%

\(sa(1+0.12)=sa+6120\) 

 

Sandy's salary is 15% less of her colleague Sonia's salary.

\(sa = (1-0.15)so\) 

 

First solve for sa using the first equation then plug that value into the second equation

and solve for so

 Mar 9, 2019

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