Answer:
A is correct
Step-by-step explanation:
Answer:
Adult tickets = 18
Children tickets = 25
Step-by-step explanation:
We can write 2 equations and solve:
let number of adult tickets be a and number of children tickets be c
Adult ticket cost is 8 and children cost is 5 and total money is 269, thus:
1. 8a + 5c = 269
Also, he sells seven more children's tickets than adult tickets, thus:
2. c - 7 = a
Now substituting 2 into 1, we can solve for c:
8a + 5c = 269
8(c-7) + 5c = 269
8c - 56 + 5c = 269
13c = 325
c = 325/13 = 25
Now using equation 2, we can solve for a:
c - 7 = a
25 - 7 = a
a = 18
So, 18 adult tickets and 25 children's ticket
Answer:
(-1,-4) is the vertex
x = -1 is the equation of symmetry;
Step-by-step explanation:
See attached image.
Let p be the amount of sales (in dollars) of phones.
Let c be the amount of sales (in dollars) of computers.
Equation 1: sales
p + c = 2100
the amount of all sales is 2100
Equation 2: commission
0.05p + 0.07c = 119
5% commission on phones plus 7% commission on computers totals to 119