Question

Baird and Lon earned points for the number of books and magazines they read over the summer. The average of the two boys’ points can be expressed as , where p represents the number of points earned per book. (5.4p+5) + (8+3.2p)/2 What is the average when p = 3?

Answer 1

The average of the two boys' points is p=3 is 19.4 points~

Explanation:

What you need to do is that you plug p=3 into the expression [(5.4p+5)+(8+3.2p)]/2 and you have:[(5.4*3+5)+(8+3.2*3)]/2= (21.2+ 17.6)/2= 38.8/2= 19.4

Answer 2

The average is 19.4

Explanation:

(5.4p+5) + (8+3.2p)/2

where p = 3 which means whenever you see p, represent it with 3

{(5.4(3)+5) + (8+3.2(3)}/2

(16.2 + 5) + (8 + 9.6)/2

combine within the bracket

(21.2) + (17.6)/2

combine both bracket

38.8/2

19.4

The average is 19.4

Hope this helps!