Chapter 1.5, Problem 3GP

To determine

How many cards does jorge have now.

Answer to Problem 3GP

  $45\text{ cards}$

Explanation of Solution

Given :

Jorge had 55 football cards he traded 8 cards for 5 from elise. He traded 6 more for 4 from leon and 5 for 3 from bret, finally he traded 12 cards for 9 from ginger.

In order to find how many cards does Jorge have now, first making a table of cards lost, card gained, and total as the lost cards and gained cards are given and he have total 55 cards subtracting card gained from card lost and then subtract it from total cards to get the total cards, as shown below:

Cards lost	Cards gained	Total
0	0	55
8	5	$\begin{array}{l}8-5=3\\ 55-3=52\end{array}$
6	4	$\begin{array}{l}6-4=2\\ 52-2=50\end{array}$
5	3	$\begin{array}{l}5-3=2\\ 50-2=48\end{array}$
12	9	$\begin{array}{l}12-9=3\\ 48-3=45\end{array}$

So, now Jorge have 45 cards.