Question

Lin opened a lemonade stand during the summer. She

noticed that she sold more lemonade on warmer days.

For each day she sold lemonade, she plotted the point

(t,c), where t represents high temperature and c

represents cups of lemonade sold.

b. A computer program found that the line c= 2t - 89

is a good fit for the data. Use this equation to predict

how many cups of lemonade Lin might sell on a day

when the high temperature is 74 degrees.

c. the high temp this Sunday is expected to be 5 degrees warmer that the high temp this Saturday. using the line c = 2t - 89 how many more cups of lemonade should lin expect to sell on Sunday than Saturday? explain or show your reasoning

Answer 1

Answer: 59 cups

Explanation:

its 59 cause yea

Answer 2

59 cups ;

10 cups

Explanation:

Given that he fitted model :

c = 2t - 89

Where, c = cups of lemonade sold ; t = high temperature

On a day when high temperature is 74 degrees ; cups of lemonade sold

Hence,

c = 2t - 89

c = 2(74) - 89

c = 148 - 89

c = 59 cups

Sunday is expected to be 5 degree warmer than on Saturday :

The number of cups sold on Sunday using the fitted model should be :

Difference in temperature between Saturday and Sunday multiplied by the slope value

Slope value from the model = 2

Temperature difference = 5

Difference in Number of cups :

2 * 5 = 10 cups

Number of lemonade sold on Sunday will be 10 cups more than that sold on Saturday