Question

The PTA is sponsoring an 8th grade

dance and has asked your help to
select a D.J. for the big event. You
called around and found that Dylan
the D.J. charges a $100 set-up fee plus
$17.50 per hour. Mya's MC Mobile hos a
$125.00 set-up fee, plus $10 per hour.
Which D.J. would you recommend to
the PTA? Be sure to clearly support
your recommendation mothemotically

Answer 1

It depends on how long the dance is expected to last.
100+17.50t = 125+10t
7.50t = 25
t = 3⅓ hours

Dylan costs less than Mya for up to three hours. For four or more hours, Mya will charge less than Dylan.