susie, the owner of susies snow cones, knows that her business requires more ice on hotter days. however…

susie, the owner of susies snow cones, knows that her business requires more ice on hotter days. however, she wants to know exactly how much ice to buy each day. so, for several weeks, she tracked the high temperature and how much ice she used. from her data, susie created a regression line relating the days high temperature in degrees fahrenheit, x, to the amount of ice used that day in pounds, y: y = 1.5x + 9 according to this regression line, how much ice would susie need on a day with a high temperature of 78°f? round your answer to the nearest whole number. pounds

susie, the owner of susies snow cones, knows that her business requires more ice on hotter days. however, she wants to know exactly how much ice to buy each day. so, for several weeks, she tracked the high temperature and how much ice she used. from her data, susie created a regression line relating the days high temperature in degrees fahrenheit, x, to the amount of ice used that day in pounds, y: y = 1.5x + 9 according to this regression line, how much ice would susie need on a day with a high temperature of 78°f? round your answer to the nearest whole number. pounds

Answer

Answer:

126

Explanation:

Step1: Substitute temperature value

Given $y = 1.5x+9$ and $x = 78$. Substitute $x$ into the equation: $y=1.5\times78 + 9$.

Step2: Calculate multiplication part

$1.5\times78=117$. So the equation becomes $y = 117+9$.

Step3: Calculate final result

$y=117 + 9=126$.