shouldn't it be for every 1 red tile there is 12 blue tiles
1:12
15:12*15
20:12*20
30:12*30
plz answer that question i have to know it!
1:12
15:12*15
20:12*20
30:12*30
Let's denote the number of red tiles as "r" and the number of blue tiles as "b".
In this case, we are given that there is one red tile surrounded by 12 blue tiles. Therefore, for every red tile, we need 12 blue tiles.
The expression to show the total number of tiles (red and blue) needed can be written as:
Total tiles = Number of red tiles + Number of blue tiles
We are given that there are 15 red tiles, so we can substitute "r" with 15 in the expression:
Total tiles = 15 + (15 * 12)
Multiplying the number of red tiles (15) by 12 gives us the number of blue tiles needed, which is 180.
Total tiles = 15 + 180
Total tiles = 195
Hence, if there are 15 red tiles, a total of 195 tiles (red and blue) are needed.
To make a table showing the total number of tiles for different numbers of red tiles, we can substitute different values of "r" in the expression and calculate the corresponding total number of tiles.
Here is the table:
| Number of red tiles | Total number of tiles |
|---------------------|----------------------|
| 15 | 195 |
| 20 | 260 |
| 25 | 325 |
| 30 | 390 |
I hope this helps!