Answer:
The Answer is that Senior Citizen Tickets cost: $4 and Child tickets cost: $7.
Step-by-step explanation:
Let s = the cost of senior citizen tickets
Let c = the cost of child tickets
The number of tickets sold for each type added together equals the sales for each day. Equations below:
Day 1
3s + 9c = $75
Solve for s:
3s = 75 - 9c
s = 25 - 3c
Day 2
8s + 5c = $67
By substitution:
8(25 - 3c) + 5c = 67
200 - 24c + 5c = 67
-19c = -133
c = -133 / -19 = $7 cost for child tickets.
Solve for s:
s = 25 - 3c
s = 25 - 3(7)
s = 25 - 21 = $4 cost for senior citizen tickets.
Proofs:
Day 1
3s + 9c = $75
3(4) + 9(7) = 75
12 + 63 = 75
75 = 75
Day 2
8s + 5c = $67
8(4) + 5(7) = 67
32 + 35 = 67
67 = 67
Answer:
2
Step-by-step explanation:
To find <em>a</em> we need to first isolate it. There is a 5 on the left side along with the -3a that has to be moved.
To do this, we can subtract 5 from both sides of the equation using the subtraction property of equality.
-3a + 5 - 5 = - 1 - 5
-3a = -6
Now that the a term is isolated, the next step is to remove the coefficient.
Let's use the division property of equality and divide both sides of the equation by -3.
-3a/-3 = -6/-3
a = 2
The mean of the scores of the top ten finishers is 71.
Where is the graph?
If there was, look at the 50th percentile. could be found using a cumulative frequency graph
ANSWER
1. Falls and then rises
2. Rises and then falls.
EXPLANATION
1. If the leading coefficient of an even-degree polynomial is positive, the graph of the polynomial will fall on the left side and rises on the right side.
2. If the leading coefficient of an even-degree polynomial is negative, the graph of the polynomial rises on the left side and falls on the right side.