Answer:
set is a collection of distinct elements. vector is an element of a vector space.
Step-by-step explanation:
Answer:
90 and 30 liters
Step-by-step explanation:
1) if solution of 20% is 'x' and of 60% is 'y' liters, then
2) the pure chlorine is: for solution of 20% - 0.2x, for solution of 60% - 0.6y and
3) the mix of the two solutions is 120=x+y.
4) using these items it is possible to make up the system of two equations:

5) finally, x=90 liters of 20%; y=30 liters of 60% solution.
Answer:
Quartz, Cups
Step-by-step explanation:
1 gallon = 16 cups
1 quartz = 4 cups
1 pint = 2 cups
1 fluid ounce = 1/8 cups
The answer is -9x
If you want explanation let me know!
I didn't provide one since you said ''What is the result''
20/q = 7/9
20×9 = 7q
7q = 180
q = 180/7