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?

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 :

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Therefore , the cost of airfare on Friday is $141

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

or