Problema Solution
Christine went shopping and bought each of her nine newphews a gift, either a video costing $14.95 or a cd costing $16.88. She spent $136.48 on the gifts. How many videos and how many cds did she buy?
She bought_____videos and ____CDS
Answer provided by our tutors
let
v = the number of videos bought
c = the number of cds bought
Christine went shopping and bought each of her nine nephews a gift thus she bought 9 gifts:
v + c = 9
she spent $136.48 on the gifts
the money spent on cds + the money spent on cds = 136.48
14.95v + 16.88c = 136.48
by solving the system of equations
v + c = 9
14.95v + 16.88c = 136.48
we find
v = 8 videos
c = 1 cd
click here to see the step by step solution of the system of equations
She bought 8 videos and 1 CD.