Suppose you add x liters of pure water to the 10 L of 25% acid solution. The new solution's volume is x + 10 L. Each L of pure water contributes no acid, while the starting solution contains 2.5 L of acid. So in the new solution, you end up with a concentration of (2.5 L)/(x + 10 L), and you want this concentration to be 10%. So we have
and so you would need to add 15 L of pure water to get the desired concentration of acid.
Answer:
$ 728
Step-by-step explanation:
Amount of Money Cody has = $700
Simple Interest = 4%
As it is know that interest is always given on annually basis so
Amount of profit he have in one year = Money he have right now * interest
=700 * 4%
=
= $ 28
After one year he will have = total money at that time + Profit
= 700 + 28
= $ 728
Answer:
X< 7/12
Step-by-step explanation:
If it was line symmetry it would need to repeat the same shape twice, which the first follows but the second doesn’t.
if it was rotational, you would need to be able to take the shape in the top right and rotate it counterclockwise or clockwise to get the shape that locks in place. that doesn’t follow that.
both line and rotational symmetry is incorrect because the first example would need to lock up inside the right side of that example.
the answer is C
Answer:
2:8
25:100
5:20
1.25:5
Step-by-step explanation: