Which is an irrational number? square root A.1 square root B.3 square root C. 4 D. square root 9
1 answer:
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Answer:
The cost of one senior citizen ticket is $5
The cost of one student ticket $7
Step-by-step explanation:
Let the cost of one senior citizen ticket be x and the cost of one student ticket be y
First day :
Number of senior citizen ticket sold = 7
Number of student ticket sold = 14
Told amount earned = $133
So the equation will be,
7x + 14y = 133 ------------(1)
Second day :
Number of senior citizen ticket sold = 8
Number of student ticket sold = 7
Told amount eared = $89
8x + 7y = 89-----------------------(2)
Multiplying equation (2) by 2
16x + 14y = 178----------------------(3)
Solving (1) and (3)
16x + 14y = 178
7x + 14y = 133
-------------------------
9x = 45
--------------------------
x= 5
Now substituting the x value in eq(1)
7(5) +14y = 133
35 +14y = 133
14y = 133 -35
14y = 98
y = 7
Answer:
255
Step-by-step explanation:
The recursive formula is used to find the terms one-by-one, unless you convert it to an explicit formula.
first term (given): 3
2nd term = 4·3 +3 = 15
3rd term = 4·15 +3 = 63
4th term = 4·63 +3 = 255
_____
Looking at the sequence of terms, we see that an explicit formula might be ...
an = 4^n -1
Then the 4th term is
a4 = 4^4 -1 = 256 -1 = 255
_____
<em>Comment on the problem statement</em>
This is NOT an Arithmetic Progression. An arithmetic progression has a <em>common</em> <em>difference</em> between terms. Here, the differences are 12, 48, 192, numbers that are <em>different</em> from one pair of adjacent terms to the next.
