Question

Yasmine works as a server in a restaurant and earns different amounts in tips each night. Her mean earrings in tips over the course of 8 nights of work is $46. Following is a list of her tip earnings, with one missing:
$35.80, $79.60, $38.10, $20.50, $10.45, $96.78, $45.90, ______

What is the value of the missing tip earnings?

Answer 1

Let x be the missing tip. The total of all 8 nights is 8 × 46 = 368.

Sum of the seven given tips:
35.80 + 79.60 + 38.10 + 20.50 + 10.45 + 96.78 + 45.90 = 327.13

So x = 368 − 327.13 = 40.87.

The missing tip amount is $40.87.