Solve the problem.
-A college student earned $5,700 during summer vacation working as a waiter in a popular restaurant. Thestudent invested part of the money at 7% and the rest at 6%. If the student received a total of $378 ininterest at the end of the year, how much was invested at 7%?
A)$3,600
B)$2,100
C)$2,850
D)$950

Question

Quizplus · Accepted Answer

The student invested $3,600 at 7% and $2,100 at 6%. The interest from the 7% investment is $3,600 * 0.07 = $252, and from the 6% investment is $2,100 * 0.06 = $126. The total interest is $252 + $126 = $378, which matches the given total interest.

Solve the Problem. -A College Student Earned $5,700 During Summer Vacation Working as Vacation