Mathematics
MrSmith
27

please help with number 5

+2
(1) Answers
bbb911

Local store: f(x)₁=money spent x=number of DVDs f(x)₁=15.49x Online store: f(x)₂=money spent x=number of DVDs f(x)₂=13.99x+6 The number of DVDs can buy for the same amount of money, is when f(x)₁=f(x)₂; therefore: 15.49x=13.99x+6 15.49x-13.99x=6 1.5x=6 x=6/1.5 x=4 Answer: For the same amount of money you can buy 4 DVDs.

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