Recycled cds incorporated, offers a choice of 5 used cds for $26, with each additional cd costing $4. write a cost function for purchasing 5 or more cds. what will the cost of buying 6 cds be? let x represent the number of cds over 5.

Question

Mathematics

Dixie Adams

24 January, 10:24

Recycled cds incorporated, offers a choice of 5 used cds for $26, with each additional cd costing $4. write a cost function for purchasing 5 or more cds. what will the cost of buying 6 cds be? let x represent the number of cds over 5.

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Landen Wilkerson · Answer 1

If $26 represents the cost of the 5 used CDs, than your formula would be "26+4x", x being the amount of extra CDs you purchase.

The number CDs minus 5 is our x value, because the first 5 are the used CDs bundled into the $26 group.

26+4 (6-5)

26+4 (1)

26+4

30

6 CDs would cost $30