Question

You and a friend both work two different jobs. the system of linear equations represents the total earnings for x hours worked at the fi earns twice as much as you.

a. one week, both of you work 4 hours at the fi rst job and y hours worked at the second job. your friend rst job. how many hours do you and your friend work at the second job?

Answer 1

Me : 4 x + 8 y = 64
My friend: 8 x + 16 y = 128
A ) 4 * 4 + 8 y = 64
16 + 8 y = 64
8 y = 64 - 16
8 y = 48
y = 48 : 8
y = 6 ( me and my friend work 6 hours at the second job )
B ) The number of hours we each work at the first job are also the same.