Answer:
y = -1
Step-by-step explanation:
Set up
x-2y = 8
Substitute 5-y for x
5 - y -2y = 8
Combine like terms
-3y + 5 = 8
Subtract 5 from both side
-3y = 3
Divide by -3
y = -1
Answer: the cost of admission for each child is $10
the cost of admission for each adult is $14
Step-by-step explanation:
Let x represent the cost of admission for each child.
Let y represent the cost of admission for each adult.
The cost of admission to a popular music concert was 162 dollars for 12 children and 3 adults. This is expressed as
12x + 3y = 162- - - - - - - - - - - - -1
The admission was 122 dollars for 8 children and 3 adults in another music concert. This is expressed as
8x + 3y = 122- - - - - - - - - - - - -2
Subtracting equation 2 from equation 1, it becomes
4x = 40
x = 40/4
x = 10
Substituting x = 10 into equation 1, it becomes
12 × 10 + 3y = 162
120 + 3y = 162
3y = 162 - 120
3y = 42
y = 42/3
y = 14
Well 7 out of 12 months have 31 days and if you need to know what the names are they are ........January,March,May,July,August,October, and December hope this helps!
Find the properties of the given parabola.
Your answer would be
7.925
