Problema Solution
The cost for Jan to set up one internet connection and one cable connection in her house is $75. The cost for her to set up one internet connection and two cable connections is $100. How much does one cable connection cost?
Answer provided by our tutors
let x represent one internet connection .
Let y represent one cable connection .
x+y=75
x+2y=100
Now make one equation x= or y= .
x=75-y
x+2y=100
Sub in .
75-y+2y=100
y=100-75
y=25
Now solve for x :D
x=75-25
x=50 :)
check .
x+y=75
50+25=75 .
So therefore the internet connection costs $50 & the cable connection cost $25 .
So basically always make a lets statment & simply sub in .