Russell's family compared cell phone plans to get the best deal. At A-Mobile, the family plan is $19 for the first two lines and $7 for each additional line. At B-Mobile, the family plan is $15 for the first two lines and $8 for each additional line. Russell's family needs to purchase 4 cell phone lines.

Question

Which family plan should Russell's family go with?
How much will the family save by doing that?

Answer 1

To determine which family plan is better for Russell's family, we will calculate the total cost for both A-Mobile and B-Mobile for 4 cell phone lines.

A-Mobile

• Cost for the first 2 lines: $19
• Cost for each additional line (2 additional lines): $7 per line

Total cost for A-Mobile: \[ 19 + (2 \times 7) = 19 + 14 = 33 \] So, the total cost for A-Mobile for 4 lines is $33.

B-Mobile

• Cost for the first 2 lines: $15
• Cost for each additional line (2 additional lines): $8 per line

Total cost for B-Mobile: \[ 15 + (2 \times 8) = 15 + 16 = 31 \] So, the total cost for B-Mobile for 4 lines is $31.

Comparison

• A-Mobile: $33
• B-Mobile: $31

Conclusion

Russell's family should go with B-Mobile, as it costs $31, which is less than A-Mobile's $33.

Savings

To find out how much they will save by choosing B-Mobile: \[ 33 - 31 = 2 \] Russell's family will save $2 by choosing B-Mobile.