Question

A computer store has certain software on sale at 3 for $20.00, with a limit of 3 at the sale price. Additional

software is available at the regular price of $9.95 each.
a) Write an expression you could use to find the cost of 5 software packages.
b) How much would 5 software packages cost?
Help me please!!!!! Is for today

Answer 1

a) y = 9.95(x-3) + 20.00

b) Cost of 5 software packages = $39.90

Explanation:

Given that:

Cost of 3 software at sale = $20

Cost of regular = $9.95

Let,

x be the number of software purchased.

We will subtract 3 from x because they cost $20.

y be the total cost.

y = 9.95(x-3)+ 20.00

Putting x=5 in expression

y = 9.95(5-3) + 20.00

y = 2(9.95) + 20.00

y = 19.90 + 20.00

y = $39.90

Hence,

a) y = 9.95(x-3) + 20.00

b) Cost of 5 software packages = $39.90