Answer: $10
Step-by-step explanation:
Let adults tickets be denoted by a
Let student tickets be denoted by s
On the first day of tickets sale, there were 10 adult tickets and 11 students tickets sold for a total of $190. This will be:
10a + 11s = 190
The second day, there were a total of $160 worth of tickets, 5 adult tickets and 12 student tickets. This will be:
5a + 12s = 160
We combine both equations
10a + 11s = 190 .......... equation i
5a + 12s = 160 ........... equation ii
Multiply equation i by 5
Multiply equation ii by 10
50a + 55s = 950 ....... equation iii
50a + 120s= 1600 ........ equation iv
Subtract equation iv from iii
50a + 55s = 950
- 50a + 120s= 1600
-65s = -650
65s= 650
Divide both side by 65
s = 10
The price for the student's ticket is $10.
Given that the <em>length</em> ratio between the radii of the two circles is (2 · x) / (5 · y). The ratio of the areas of the two circles is (4 · x²) / (25 · y²).
<h3>What is the area ratio of two circles?</h3>
According to the statement we know that the radius ratio between two circles. Given that the area of the circle is directly proportional to the square of its radius, then the <em>area</em> ratio is shown below:
A ∝ r²
A = k · r²
A' · r² = A · r'²
A' / A = r'² / r²
A' / A = (r' / r)²
A' / A = [(2 · x) / (5 · y)]²
A' / A = (4 · x²) / (25 · y²)
Given that the <em>length</em> ratio between the radii of the two circles is (2 · x) / (5 · y). The ratio of the areas of the two circles is (4 · x²) / (25 · y²).
To learn more on ratios: brainly.com/question/13419413
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6. least and/or lowest (unsure)
7. lowest
Answer:
113.1
Step-by-step explanation:
V=4/3π(r)^3
V=4/3π(3)^3
V=4/3(27)π
V=36π ---> 113.1
