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?
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
