Doug has 170 stamps in his collection. His first book of stamps has 30 more stamps in it than his second book how many stamps are in each book. how do you figure out what P is? Divide 170 by 2?
Let x = the second book.
x + x + 30 = 170
2x = 170 - 30
x = 140/2
x = ?
To figure out the number of stamps in each book, we can use algebra. Let's use variables to represent the number of stamps in each book. Let's say the number of stamps in the second book is S.
According to the problem, the first book has 30 more stamps than the second book. So, the number of stamps in the first book would be S + 30.
Now, we have two books with stamps. The total number of stamps is given as 170. Thus, we can set up the equation:
S + (S + 30) = 170
We can simplify this equation:
2S + 30 = 170
Subtract 30 from both sides:
2S = 170 - 30
2S = 140
Divide both sides by 2:
2S/2 = 140/2
S = 70
So, S, the number of stamps in the second book, is 70.
To find the number of stamps in the first book, we can substitute S back into the equation:
First book = S + 30 = 70 + 30 = 100
Therefore, there are 70 stamps in the second book and 100 stamps in the first book.