Choose the inequality that matches this situation.

Company A charges $312 to power-wash the siding of a house plus $12 for each window. Company B charges $36 per window. and the price includs the siding. How many windows must a house have to make the total cost from Company A be less expensive than Company B?

312 - 12w > 36w

312 + 12w < 36w

12w + 36w > 312

36w - 12w < 312

1 answer

To determine the inequality that matches the situation, we need to express the costs of both companies in relation to the number of windows, \( w \).

Company A's cost:

  • Fixed cost for siding: $312
  • Variable cost for each window: $12
  • Total cost for Company A can be expressed as: \[ \text{Cost}_{A} = 312 + 12w \]

Company B's cost:

  • Company B charges $36 per window and the price includes the siding.
  • Thus, the total cost for Company B can be expressed as: \[ \text{Cost}_{B} = 36w \]

We want the total cost from Company A to be less than the total cost from Company B, so we set up the inequality: \[ 312 + 12w < 36w \]

This means that Company A's cost should be less than Company B's cost. Therefore, the correct inequality that matches the situation is:

\[ 312 + 12w < 36w \]

So the answer is: 312 + 12w < 36w