Answer:
15
Step-by-step explanation:
Let the number of adult tickets be x while children ticket be y. Since the total tickets were 20 then we can form the equation
x+y=20
Making x the subject then x=20-y
Considering the cost of each ticket
15x+10y=225
Substituting x with 20-y then
15(20-y)+10y=225
300-15y+10y=225
Collecting like terms
300-225=15y-10y
75=5y
Y=75/5=15
To find x, we already know that x=20-y hence x=20-15=5
Therefore, children tickets are 15 while adult tickets are 5.
The question only needs us to know the children tickets, y which is 15
Answer:
Awnser is C
Step-by-step explanation:
We just have to make the top bar seem bigger then it actually is
-3x + 5y = -9
4x + 8y = 12
Simplify the second,
x + 2y = 3
Times three,
3x + 6y = 9
Add to the first equation,
11y = 0
y = 0
-3x + 5(0) = -9
x = 3
Answer: x=3, y=0
Eli has 7 bottles of water.
He will buy more bottles of water from the store. The store has 8 cases in
stock and each case contains 24 bottles of water. The store will not sell
partial cases. The function that models the number of bottles of water Eli will
have after his purchase is f(c)=24c+7, where c is the number of cases of water
he buys.
<span>The practical domain of the
function is all positive integer because c represents the number of case, and
there is no negative number of case and it is not sold in partial so only
positive intger can satisfy the given function.</span>
