Question

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

Answer 1

the cost of airfare on Friday is $141

Step-by-step 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 :

⇒ $\frac{40+44+50+60+x}{5} =67$

⇒ $\frac{194+x}{5} =67$

⇒ $194+x =67(5)$

⇒ $x =335-194$

⇒ $x =141$

Therefore , the cost of airfare on Friday is $141