Answer:
6 liters
Step-by-step explanation:
Let x represent the amount of pure concentrate used to make the punch. Then the total amount of concentrate in the punch is ...
0.20·10 +1.00x = 0.50(10+x)
x +2 = 0.5x +5 . . . . . eliminate parentheses
0.5x = 3 . . . . . . . . . . .subtract 2+0.5x
x = 6 . . . . . . . . . . . . . multiply by 2
6 liters of pure concentrate must be added to make a 50% punch.
X divided by 2 = y
Or you could do
Y times 2= x
Answer:
-19
Step-by-step explanation:
It is a non repeating decimal
Answer:
Yes. They are proportional.
Step-by-step explanation:


The left side 0.777 is equal to the right side 0.777, which means that the given statement is always true.
True
The exponent is 9, making it 10 to the power of 9. As the exponent is positive, the solution is a number greater than the origin or base number.