Problema Solution
Ms. Kitts work at a music store. last week she sold 6 more than 3 times the number of CDS that she sold this week. Ms. Kitts sold a total of 110 CDs over the 2 weeks. Which system of equations can be used to find l, the number of CDs she sold last week and t, the number of CDs she sold this week?
Answer provided by our tutors
l = the number of CDs she sold last week
t = the number of CDs she sold this week
last week she sold 6 more than 3 times the number of CDS that she sold this week
l = 6 + 3t
Ms. Kitts sold a total of 110 CDs over the 2 weeks
l + t = 110
by solving the system of equations
l = 6 + 3t
l + t = 110
we find
l = 84 CDs
t = 26 CDs
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