Using it's concept, considering the tree diagram, the probability of event C is given as follows:
P(C) = 0.26.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
Each node at the tree is a multiplication, hence the probability of event C is given as follows:
P(C) = 0.6 x 0.3 + 0.4 x 0.2 = 0.18 + 0.08 = 0.26.
More can be learned about probabilities at brainly.com/question/14398287
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Answer: She has 40 nickels and 40 quarters .
Step-by-step explanation:
Let be "n" the number of nickels Theresa has and "q" the number of quarters Theresa has.
You know that she has a total of $12 in nickels and quarters. In cents, this is:
Then, based on this you can write the following expression:
Since , you can rewrite it as:
Solving for "n", you get:
Therefore she has 40 nickels and 40 quarters .
Answer:
y = 2x - 3
Step-by-step explanation:
Answer:
i believe the correct answer is x+90+63=180
Step-by-step explanation: