Question

The sale of sweaters in a town changes with the temperature. If a statistical model predicts that daily sales (in dollars) are determined by the function s = 900 − 100t, where t is the temperature (in degrees Celsius), what is the temperature if sweater sales are at $1,200?

Answer 1

The temperature when sweater sales are at $1,200 is -3 degrees Celsius.

Step-by-step explanation:

To find the temperature when sweater sales are at $1,200, we need to solve the given equation for t, which represents the temperature. The equation is s = 900 - 100t, where s represents the sales in dollars. We are given that the sales are $1,200. Therefore, we can substitute this value into the equation and solve for t: 1200 = 900 - 100t. By rearranging the equation, we get -100t = 1200 - 900, which simplifies to -100t = 300. Dividing both sides of the equation by -100, we find that t = -3.

Answer 2

21 Celsius.

You add 900 to 1,200 to get 2,100. Then you divide that by 100 to get 21. Hope this helps!