Answer:
x = 10
Step-by-step explanation:
108 = (5x + 47) + (2x + 63)
5x + 47 + 2x + 63 = 180
Simplify
7x + 110 = 180
Move all terms not containing x to the right side of the equation.
7x = 70
Divide
x = 10
<em>good luck, hope this helps :)</em>
Answer:
the answer is c
Step-by-step explanation:
x-3<-9
x<-6 open circle shaded to the left
x+5> or = 12
x > or = 7 closed circle ahaded to the right
Pythagorean theorem
A^2 + 144 = 169
A^2 = 25
A = 5in.
tiệm cận ngang của đồ thị 3/x+3
There are 20 gallons of 20% butterbeer solution.
Assume there are x gallons of 80% solution.
So total amount of the solution will be (x+20) gallons
The final solution is 50%.
So, we can set up the equation as:
.
Thus, there will be 20 gallons of 80% butterbeer solution that is needed to be mixed with 20 gallons of 20% butterbeer solution.