Question

5. The average cost of airfare for a one-way ticket from Las Vegas to Los Angeles was $67

for the days of Monday through Friday. The cost of airfare Monday through Thursday
was $40, $44, $50, $60 respectively. What was the cost of airfare on Friday?

Answer 1

the cost of airfare on Friday is $141

Explanation:

Here we have , The average cost of airfare for a one-way ticket from Las Vegas to Los Angeles was $67 for the days of Monday through Friday. The cost of airfare Monday through Thursday was $40, $44, $50, $60 respectively. We need to find What was the cost of airfare on Friday.Let's find out:

Let amount of Friday be x , So Average cost of airfare for a one-way ticket from Las Vegas to Los Angeles is given by :

⇒
`(40+44+50+60+x)/(5) =67`

⇒
`(194+x)/(5) =67`

⇒
`194+x =67(5)`

⇒
`x =335-194`

⇒
`x =141`

Therefore , the cost of airfare on Friday is $141