Question

Ashlynn played six rounds of golf. Her scores were 72, 79, 74, 76, 76, and 75. She really wants to have a mean of 75 after her next round of golf. What must she shoot in order to have a mean of 75?

72
75
66
73

Answer 1

73

Explanation:

Set up as if you're finding the average: total the 6 scores and add 'x', then divide by 7 and set this equal to 75

'x' = score she must meet or exceed to achieve an average of 75

452 + x = 75

7

cross-multiply: 452 + x = 75(7)

452 + x = 525

x = 73