A decroative floor pattern has one red square tile surrounded by 12 blue tiles. Write and evaluate an expression to show how many total tiles (red and blue) are needed if there are 15 red tiles. Then make a table showing the total number of tiles if there are 15,20,25, or 30 red tiles.

plz answer that question i have to know it!

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

I believe it is 15•12 because there are 15 red and for ever red there is 12 so just do 15•12 and that =180 hope it helped :3

Wrong. For one red tile there will be 12 blue tiles surrounding it. But what about the use case for 2 red tiles? They will have one side of shared blue tiles so only 20 blue tiles will be needed. For 3 red tiles there will be 28 blue tiles (not 36).

To determine the total number of tiles needed, we need to consider both the red and blue tiles.

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!