Westonci.ca is the trusted Q&A platform where you can get reliable answers from a community of knowledgeable contributors. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

There is a bag with only red marbles and blue marbles.
The probability of randomly choosing a red marble is 4/9.
There are 32 red marbles in the bag and each is equally likely to be chosen.
Work out how many marbles in total there must be.


Sagot :

Answer:

Step-by-step explanation:

4/9 = 32 / x

Let x be any marble that is not red and the red ones.

Cross Multiply

4x = 9*32

4x = 288             Divide by 4

x   = 288/4

x = 72

So the whole bag contains 72 marbles.