Step-by-step explanation:
75%
selected=8
=8-5=3
=75/100×3
=3/4×3
=9/4
=2 1/4
Answer:
Any more info?
Step-by-step explanation:
Answer: Don't understand what's the question
Step-by-step explanation:
You said Sam is going to a field trip to the science museum and there are 31 students.
There are four numbers of 3-coin combinations if we can choose from nickels, dimes, quarters, and half-dollars.
<h3>How to solve probability combinations?</h3>
The coins to select from are nickels, dimes, quarters, and half-dollars;
Thus;
Coins (n) = 4
The number of coin to select is:
Coin (r) = 3
The coin combination is then calculated using:
Combination = ⁴C₃
Apply the combination formula, we have;
Combination = 4
Thus, there are four number 3-coin combinations if we can choose from nickels, dimes, quarters, and half-dollars.
Read more about combinations at; brainly.com/question/4658834
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