If "C" represents the cost of the pizzas, "12" represents dollars, and "n" represents the number of pizzas, what is the equation
1 answer:
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Blocks would he need on the 12th step of the pattern is 34.
The correct option is A
<h3></h3><h3>What is series?</h3>A series is the cumulative sum of a given sequence of terms.
Given:
We can write the series as follows:
1,4,7,10,13,.......
First term =1
common difference= 4-1=3
Using Arithmetic series
= a+11d
= 1 +11*3
= 1+33
= 34.
Hence, 34 blocks need on 12th step.
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The probability expression is
The given parameters are
- Sophomore = 6
- Freshmen = 14
The total number of people is
n = 20
2 of the 20 people are to be selected.
So, the number of selection is
This gives
The expression that represents both students being sophomore is
--- i.e. 2 students selected from 6
The probability is then represented as:
Hence, the probability expression is
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