Ajar contains 10 marbles in total. Some of the marbles are blue and the rest are red. If the probability of picking a red marble is
10
how many red marbles are there in the jar?
Number of red marbles = Enter your next step here

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −