Melinda and Marcus are saving money to purchase a present for a friend. Each friend starts with an amount and also saves a specific amount each week.Melinda created a table to show the total she has saved at the end of each week.Weeks: 0 5 10 15 20 25 30 35 40Amount: 75 135 195 255 315 375 435 495 555Marcus came up with the following equation to show the total, y, he has saved at the end of each week, x.y = 14x + 25Compare the rate at which each friend saves money.Select the correct answer from the drop-down menu to complete the statement.The rate at which Melinda is adding to her savings each week is $less than the rate at which Marcus is adding to his savings each week.
Accepted Solution
A:
From Melinda's table it can be seen that the rate of increase of Melinda's savings is $60 per week.
From Marcus equation it can be seen that the rate of increase of Marcus savings is $24 per week.
Therefore, the rate at which Melinda is adding to her savings each week is 60 - 24 = $36 more than the rate at which Marcus is adding to his savings each week.