In fact, this problem belongs to the chemistry section. Recall that many other sciences require mathematical calculations. The problem will belong to Mathematics only if no knowledge of other sciences are required to solve the problem.
Solubility for the given substances is measured in grams per 100 g of water at a particular temperature (20 deg.C).
This means that the mass (assumed to be the solute) will not change the solubility, just the minimum quantity of solvent (water) will.
Thus the solubility of sodium chloride will remain L=36 g/100g H2O for any quantity of solute. Similarly, the solubility of lead nitrate will remain as K=54 g/100 g H2O.
The reason that they remain constant is because the quantity of solvent (water) is fixed at 100 g. Varying amount of solute will affect the quantity of solvent required, but not the solubility.
I'll leave it to you to calculate the difference between K & L.
So, we have our numbers -20.59 and 40.
We need to find the difference between the two.
When we subtract 40 from -20.59 and make it absolute value, that is the distance between the two numbers on a number line. So, in order to reach the minimum distance on her checking account, she needs to deposit $60.59
Answer: She needs to deposit $60.59 into her checking account.
Answer:
the answer is odd
Step-by-step explanation:
Answer:
600 minutes
Step-by-step explanation:
The total rate of the Pump is gotten first
15 + 20 = total rates of 35 gallon per hour .
rate = volume/ time.
Volume = rate * time
21,000 = 35 * t
t = 21,000/35
t = 600 minutes.
To check the volume each pump will pump out.
pump A 15 * 100 = 9000 gallons
Pump B 20 * 600 = 12000 gallons.
12,000+9,000= 21,000 which gives the total gallons of the swimming pool back
Answer: The answer would be 32.333 (goes on)
Step-by-step explanation:
2n-7 + n = 90