Use x+2y=8
Subtract 2y to make
x=8-2y
Plug this in to the other equation
3(8-2y)+2y=6
Distribute the 3
24-6y+2y=6
Combine like terms
24-4y=6
Solve
18/4=y, 9/2=y
Plug and solve for x
X+2y=8
X+(2*9/2)=8
X+9=8
X=-1
You can cross multiply to get 4 * 21 = 7x
84 = 7x; divide both sides by 7
12 = x so the number 12 will go in the blank (12 girls)
Answer: domain = 12 students
Range = $60
Step-by-step explanation:
Given that the total dollar amount earned, E. Is a function of the number of members who perform communityservice, n
That is
E(n) = 5n
Since the club earn $5 on each student who does community service,
Domain is independent variable n
While range is dependent variable E
Domain is therefore = 12 students
Range = 12 × 5 = $60
Answer:
The normal ticket price is 
Step-by-step explanation:
Let
x------> the normal ticket price
we know that
The linear equation that represent this situation is
Solve for x
A quick way to solve this problem involves copying the given equation:
2x + 5y = 10
dropping the final 10, and
substituting the given x and y values: (5, -4).
Then:
2(5) + 5(-4) = C C = 10-20 = -10
Thus, the equation of this new, parallel line is 2x + 5y = -10.
