Problema Solution
Jennifer earns a weekly salary of $255 plus a bonus of $0.25 for each CD over 150 that she sells each week. The equation C(r) = 255 + 0.25(r-150) can be used to determine her total income. How much more will she earn by selling 450 Cds than 200 CDs?
Answer provided by our tutors
by selling 450 CDs she will earn
C(450) = 255 + 0.25(450-150)
C(450) = $330
by selling 200 CDs she will earn
C(200) = 255 + 0.25(200-150)
C(200) = $267.5
C(450) - C(200) = 330 - 267.5 = $62.5
by selling 450 CDs she will earn $62.5 more than the money she will earn by selling 200 CDs.