2n+6=2n+6
0=0
inconsistent solutions
You have to use the substitution method by substituting one Y value with the other
if itis perimeter add all sides
if it is área multiply
sin α = opposite leg/ hypotenuse
For ΔABC,
sin A = |BC|/|AB|
sin A = 12/37
$4
You can get this by setting up 2 equations. One for you and one for your friend. Each should have a cost equation. Let x = adult and y = student.
You: 7x + 16y = 120
Friend: 13x + 9 = 140
Solve using any method.
