there were ships with 3 masts and ships with 4 masts at the Tall ships exhibition. mille counted a total of 29 masts on the 8 ships he saw. how many of these ships have 4 masts

Answer 1

Let x be the number of ships with 3 masts.
Then, the number of ships with 4 masts is 8 - x.
Each ship with 3 masts has 3 masts.
Each ship with 4 masts has 4 masts.
The total number of masts is 3x + 4(8 - x) = 29.
Simplifying the equation, we get:
3x + 32 - 4x = 29
-x + 32 = 29
-x = -3
x = 3
So, there are 8 - x = 8 - 3 = <<8-3=5>>5 ships with 4 masts. Answer: \boxed{5}.