15 gallons of 35% peroxide solution contains 0.35 × 15 = 5.25 gallons of hydrogen peroxide. The rest of the volume is made up of 15 - 5.25 = 9.75 gallons of water.
If we add 
gallons of water to the solution, the amount of hyrdrogen peroxide in the solution stays the same, but the volume of water increases to 
gallons, and the total volume increases to 
gallons.
To get a concentration of 8% in this diluted solution, we add gallons of water such that
Solve for .
To get the desired concentration, one must add 50.625 gallons of water, and one will end up with a total volume of 65.625 gallons of solution.
Answer:
2/4 x 7/10 = 14/40, or 7/20.
5/6 x 3/4 = 15/24, or 5/8
3/4 x 2/3 = 6/12, or 1/2
3/10 x 4/5 = 12/50, or 6/25
i think you can finish the rest, all you have to do is multiply the numerator and the numerator, and the denominator and the denominator.
numerator = number on the top
denominator = number on the bottom
then put the two results:
[numerator x numerator]
____________________
[denominator x denominator]
hope this helped! ^^
Answer:
5
Step-by-step explanation:
The matrix is in the form
a b
c d
The determinant is
ad -bc
2 *4 - 1 *3
8 - 3
5
Answer: 38/45
Step-by-step explanation:
4/10 + 4/9
Lowest Common Multiple of 9 and 10 is 90. Rewrite fractions as 36/90 and 40/90. Add the numerators to get 76/90. Simplify that and you get 38/45, or 0.8444 (four repeating).
Answer:
2 and 4
Step-by-step explanation:
