Roberto has a bag that contains 7 blue, 5 purple, 12 red, and 6 orange marbles. If he draws one marble at random from the bag, w
hat is the probability of selecting a RED or ORANGE marble?
2 answers:
Answer:
60%
Step-by-step explanation:
There are 7 blue, 5 purple, 12 red, and 6 orange marbles.
There are 30 marbles in all.
There are 18 red and orange marbles. There are 18 preferred events and 30 total events.
%
There should be 60% chance that Roberto would pick either a red or orange marble.
I'm giving you 3 different answers because I don't know if you need it as a fraction, decimal, or percent
7 + 5 + 12 + 6 = 30
12 + 6 = 18
18/30
simplify
18 / 2 = 9
30 / 2 = 15
9/15
change to a decimal
9 / 15 = .6
change to a percent
.6 x 100 = 60%
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