Respuesta :

Answer:

D 1:3

Step-by-step explanation:

In total, there are 30 cards. There are 10/30 red cards a fraction which can be further simplified to 1/3. This is aplicable to the ratio as well therefore, the answer is 1:3.

Answer:

the answer is d. 1:3 because to find the answer you need to look at the keyword which is the ratio of red cards to other cards and put the ratio this way and you need to add the other cards which is black and blue.

__red cards______

     other cards

____10 divided by 10 = __1____

         30 divided by 10     3

Step-by-step explanation: hopefully that is the correct answer.