Question

jill asked 60 tenth and eleventh graders whether they have a part - time job or not. the table shows some of the results. complete the table.

	has part - time job	does not have part - time job	total
eleventh grade	20		30
total			60

Explanation:

Step1: Find Tenth grade total

Total students are 60, Eleventh grade total is 30. So Tenth grade total = 60 - 30 = 30.

Step2: Find Tenth grade has part - time job

Tenth grade total is 30, does not have is 18. So has = 30 - 18 = 12.

Step3: Find Eleventh grade does not have part - time job

Eleventh grade total is 30, has is 20. So does not have = 30 - 20 = 10.

Step4: Find Total has part - time job

Tenth grade has 12, Eleventh has 20. So total has = 12 + 20 = 32.

Step5: Find Total does not have part - time job

Tenth grade does not have 18, Eleventh has 10. So total does not have = 18 + 10 = 28.

Filling the table:

	Has part - time job	Does not have part - time job	Total
Eleventh grade	20	10	30
Total	32	28	60

Answer:

The filled table is as above with Tenth grade (Has part - time job: 12, Total: 30), Eleventh grade (Does not have part - time job: 10), Total (Has part - time job: 32, Does not have part - time job: 28).