Answer:
Step-by-step explanation:
Let cd price x; dvd price y
3x+y=20
2x+2y= 22
from the first equation, y= 20-3x
substitute y in the second equation, 2x+2(20-3x)= 22, simplify -4x= -18, x= 4.5 and y= 6
Therefore, cd: $4.50 and dvd: $6.50
Kate: 6x+2y=56
Jake: 3x+3y=48
$75
Question:Mr Tarun earns dollar $12.50 a day how much would he earn if he works for 6 days?
Solution:$12.50 in a day
12.50 multiple by 6
=75
Ans.$75
HOPE IT HELPS
CARY ON LEARNING
something perpendicular probably
