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.\n\nrecreational time\nminutes of television viewing, x minutes of exercising, y\n45 60\n65 45\n120 5\n22 80\n80 25\n\nwhich is the best prediction for the number of minutes of exercising sam will do if she spends 30 minutes watching television that day?\n45 minutes\n72 minutes\n83 minutes\n118 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.\n\nrecreational time\nminutes of television viewing, x minutes of exercising, y\n45 60\n65 45\n120 5\n22 80\n80 25\n\nwhich is the best prediction for the number of minutes of exercising sam will do if she spends 30 minutes watching television that day?\n45 minutes\n72 minutes\n83 minutes\n118 minutes

Answer

Explanation:

Step1: Identify the given values

We are given the function $y=- 0.78x + 95$ and $x = 30$.

Step2: Substitute the value of x into the function

Substitute $x = 30$ into $y=-0.78x + 95$. So, $y=-0.78\times30 + 95$. First, calculate $-0.78\times30=-23.4$. Then $y=-23.4 + 95$.

Step3: Calculate the value of y

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

Answer:

72 minutes