the table compares x, the number of minutes of television sam watched each day, to y, the number of minutes…

the table compares x, the number of minutes of television sam watched each day, to y, the number of minutes she spent exercising. the function y = -0.78x + 95 models the data in the table. which is the best prediction for the number of minutes of exercising sam will do if she spends 30 minutes watching television that day? recreational time minutes of television viewing, x minutes of exercising, y 45 60 65 45 120 5 22 80 80 25 45 minutes 72 minutes 83 minutes 118 minutes

the table compares x, the number of minutes of television sam watched each day, to y, the number of minutes she spent exercising. the function y = -0.78x + 95 models the data in the table. which is the best prediction for the number of minutes of exercising sam will do if she spends 30 minutes watching television that day? recreational time minutes of television viewing, x minutes of exercising, y 45 60 65 45 120 5 22 80 80 25 45 minutes 72 minutes 83 minutes 118 minutes

Answer

Explanation:

Step1: Substitute x value

We are given the function $y=- 0.78x + 95$ and $x = 30$. Substitute $x = 30$ into the function: $y=-0.78\times30 + 95$.

Step2: Calculate multiplication

First, calculate $-0.78\times30=-23.4$. So the equation becomes $y=-23.4 + 95$.

Step3: Calculate addition

Then, $y=-23.4+95 = 71.6\approx72$.

Answer:

72 minutes