Question

Q4. Pedro's luncheonette is open six days a week. His income for the first five days was $1,200,$1,200, $2,000, $1,400 and $3,000.
How much money must she make on the sixth-day to average $2,000 for the six days?

Answer 1

Answer:

Step-by-step explanation:

Pedro must make $330 on the 6th day to have a mean average of $200.

Step-by-step explanation:

Formula for Mean Average

Mean Average = Sum of data/Total number of data

DATA:

1st day = $120

2nd day = $110

3rd day = $200

4th day = $300

5th day = $140

6th day = x

Solution:

Mean Average =  Sum of data/Total number of data

200 = 120+110+200+300+140+x/6

200*6 = 870+x

1200 - 870 = x

x = 330

Pedro must make $330 on the 6th day to have a mean average of $200