Can someone please help me. You and 3 friends rent a limousine for the prom. The cost is $79.95 per day plus
$0.38 per mile. Insurance costs $75. You rent the limo for 2 days and drive 48 miles.
The limo gets 8 miles per gallon. Gas costs $1.23 per gallon.
a. What is the total cost of renting the limo?
b. What is the cost per mile?
C. What is the cost per person?

a

step-by-step explanation:

given the 2 equations

- x + y = - 2 → (1)

2x - 3y = 4 → (2)

multiplying (1) by 2 and adding to (2) will eliminate the x- term

- 2x + 2y = - 4 → (3)

add (2) and (3) term by term

(2x - 2x) + (- 3y + 2y) = (4 - 4), simplifying gives

- y = 0 ⇒ y = 0

substitute y = 0 in either of the 2 equations for corresponding value of x

substituting in (2) gives

2x = 4 ( divide both sides by 2 )

x = 2

solution is (2, 0 ) → a