An opaque bag contains green marbles, 3 blue marbles, and 2 red marbles.
what is the probability of randomly picking out a marble and the marble being

Probability of picking out a red marble is

Step-by-step explanation:

In the opaque bag there are 5 green marbles, 3 blue marbles and 2 red marbles.

Total number of marbles in the bag= 5+3+2 = 10

We have to find the probability of picking a red marble.

P(picking up a red ball)==

Hence the probability of picking out a red ball is

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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