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 $x$ 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 $y$

$y=71.6\approx72$.

Answer:

72 minutes