George saves 18% of his total gross weekly earnings from his 2 part-time jobs. He earns $6.25 per hour from one part-time job and $7.50 per hour from the other part-time job. George works a total of 40 hours between the two jobs each week. What additional information is needed to determine the amount of his earnings he saves each week?
Answers
the amount of time he spends doing either job
Answer:
To determine the amount his earnings he saves each week we need the number of hours George spend between these two part-time jobs
Step-by-step explanation:
Given George saves 18% of his total gross weekly earnings from his 2 part-time jobs. He earns $6.25 per hour from one part-time job and $7.50 per hour from the other part-time job. George works a total of 40 hours between the two jobs each week.
Let x be the hours which George spend at a part time job where he earns $6.25 per hour.
Therefore, total money earn by George at this part-time job is $(6.25)x
Total works hours for two part-time jobs are 40
∴ working hours at the job where he earns $7.50 per hour are (40-x) hours.
Therefore, total money earn by George at this part-time job is $7.50(40-x)
Hence, to determine the amount his earnings he saves each week we need the value of x i.e number of hours George spend between these two part-time jobs or we can say number of hours spend on one of the part-time job.