Question

A cell phone company is offering 2 different monthly plans. Each plan charges a monthly fee pulls an additional cost per gigabyt used.

Plan A: $50 fee plus $7.50 per gigabyte of data
Plan B: $60 fee plus $5.00 per gigabyte of data
1. Write an expression to represent the cost of Plan A.
2. Write an expression to represent the cost of Plan B.
3. Which plan would be the least expensive for someone who uses 6 gigabytes of data?

Answer 1

The cost of Plan A is $50 + $7.50 per gigabyte, while the cost of Plan B is $60 + $5.00 per gigabyte. Plan B would be the least expensive for someone who uses 6 gigabytes of data.

Step-by-step explanation:

1. The expression to represent the cost of Plan A is $50 + $7.50 per gigabyte.

2. The expression to represent the cost of Plan B is $60 + $5.00 per gigabyte.

3. To determine which plan would be the least expensive for someone who uses 6 gigabytes of data, we can substitute 6 for the gigabytes in both expressions and compare the total cost. For Plan A, the cost would be $50 + $7.50 * 6 = $50 + $45 = $95. For Plan B, the cost would be $60 + $5.00 * 6 = $60 + $30 = $90. Therefore, Plan B would be the least expensive for someone who uses 6 gigabytes of data.