(a) To find the ratio of roses to all flowers in the vase, we first need to calculate the total number of flowers:
Total flowers = Number of roses + Number of daisies
Total flowers = 9 + 7 = 16
Now, we can find the ratio of roses to all flowers:
Ratio of roses to all flowers = Number of roses : Total flowers
Ratio of roses to all flowers = 9 : 16
(b) To find the ratio of daisies to all flowers, we can use the same total number of flowers (16):
Ratio of daisies to all flowers = Number of daisies : Total flowers
Ratio of daisies to all flowers = 7 : 16
So, the final answers are:
(a) 9 : 16
(b) 7 : 16