Each of Michelle's vases holds 4 yellow roses.
To find the answer to this, we first need to find the total number of flowers that Colise has. To find this, we add the number of roses together and then multiply times the number of vases.
(Red + Yellow) * Vases = Total number
(10 + 5) * 2 = Total number
15 * 2 = Total number
30 = Total number
Now, knowing this, we can assume that Michelle also has 30 flowers (since she has the same amount as Colise). To find the number of yellow roses, we can subtract the number of red roses Michelle has .
30 - Red = Yellow Roses for Michelle.
30 - 18 = Yellow Roses for Michelle
12 = Yellow Roses for Michelle.
Finally, we divide that 12 by the number of vases she has.
12/3 = 4
