You may want to use desmos for all of these kind of questions
Answer:
210
Step-by-step explanation:
2 x 3 x 5 x 7 = 210
Answer:
the real answer is -1/3
Step-by-step explanation:
6lyl +6=4 subtract 6 from both sides
6lyl =-2 divide both sides by 6
lyl = -1/3
But absolute value is always a positive quantity, so this is impossible.....
1/2 Square equals to 1/4 equals to x over 5 2 Square
therefore 1/4 equals to x over 5 2 square
Equals to 1/4 equals to x over 5 * 4 you know that 2 square equals to 4
So now I'm going to solve for 1/4 equals to x of over 5 * 4 equals to 20
1/4 equals to x over 20
1/4 equals to 20 cross multiply
= 1\4 = x/20
= 4 * x = 20*1
4x = 20
divide both side by the coefficient of x
4x/4 = 20/4
x =5
Answer:
The answer is 4 liters.
Step-by-step explanation:
We want a final 25% solution, which means that the solvent should constitute 25 percent of all the liters of solution.
Let us call 
the litres of 40% solution, so when they are added to the 12 litres of 20% solution, the total litres of the new solution are:
of these liters, 25% must be the solvent:
Now for the 40% solution, the liters of the solvent are 
, and for the 20% liter solution, the liters of solve are 
liters. Thus the total liters 
of the solvent are
Therefore
