The number of streamers to buy in order for the total lengths of the streamers to be equal is 0 streamers.
How to solve word problem.
Given that
The length of orange streamers = 9 ft
The length of black streamers = 12 ft
Let n be the number of streamers.
The total length of the orange streamers
= length of each * n = 9 * n
= 9n
The total length of the black streamers
= length of each * n = 12 * n
= 12n
For the total lengths of the streamers to be equal
9n = 12n
Solve fo n
9n - 12n = 0
-3n = 0
n = 0
Therefore, the number of streamers to buy in order for the total lengths of the streamers to be equal is 0 streamer.
Complete question
You buy orange and black streamers for a party. The orange streamers are 9 feet long, and the black streamers are 12 feet long. What are the least number of streamers you should buy in order for the total length of the orange streamers to be the same as the total length of the black streamers?