Jacob has serveral babysitting jobs. On one job he earnefd $10 an hour plus an extra $20 since there where 3 children. On another job, he earned $15 an hour. He
Mathematics
Omegakam1
Question
Jacob has serveral babysitting jobs. On one job he earnefd $10 an hour plus an extra $20 since there where 3 children. On another job, he earned $15 an hour. He earned the same amount of money at both jobs. How many hours did he work and how much did he earn?
2 Answer

1. User Answers calculista
Answer:
Jacob worked 4 hours and earned $60
Stepbystep explanation:
Let
y > the amount earned
x > the number of hours
First job
The linear equation is equal to
y=10x+20 > equation A
Second job
The linear equation is equal to
y=15x > equation B
we know that
He earned the same amount of money at both jobs
To find the number of hours he worked math equation A and equation B
10x+20=15x
solve for x
15x10x=20
5x=20
x=4 hours
so
For x=4 hours
y=10x+20 > y=10(4)+20=$60
y=15x > y=15(4)=$60
For x=4 hours
The amount earned is the same in both works

2. User Answers casy63
Answer:
4 hours, $60
Stepbystep explanation: