Brent counted 10 red cards, 10 black cards, and 20 blue cards in a deck of cards. What is the ratio of red cards to the other cards?

1:3 because 10 + 20 is 30. So 10:30

Simplify that. 1:3 BOOM MAGIC ;D

To find the ratio of red cards to the other cards, we need to determine the total number of cards that are not red.

The total number of cards in the deck is the sum of the red, black, and blue cards:
Total number of cards = Number of red cards + Number of black cards + Number of blue cards

In this case, the total number of cards is:
Total number of cards = 10 red cards + 10 black cards + 20 blue cards

Now, we can calculate the ratio of red cards to the other cards:
Ratio of red cards to other cards = Number of red cards / Total number of other cards

The total number of other cards is the sum of black and blue cards in this case:
Total number of other cards = Number of black cards + Number of blue cards
Total number of other cards = 10 black cards + 20 blue cards

Now, we can substitute these values into the ratio formula:
Ratio of red cards to other cards = 10 red cards / (10 black cards + 20 blue cards)

Simplifying the expression, we get:
Ratio of red cards to other cards = 10/ (10 + 20) = 10/30 = 1/3

Therefore, the ratio of red cards to the other cards is 1:3.

1:1

1:3

10:40 = 1/4