We do as follows:
let x = amount of 45% solution
y = amount of 30% solution
overall balance => x + y = 450
acid balance => .45x + .30y = .40(450)
Solving simultaneously, we will have:
x = 300 mL
y = 150 mL
This is assuming that partial molar properties does not affect the volume greatly. Hope this answers the question. Have a nice day.
Answer:
22 per dog when she is walking 8
she would make 176 for walking all 8 of them
Step-by-step explanation:
For each additional dog she walks she is giving a discount. If you subtract each one you will see she is giving a 2.75 discount.
40-37.25 = 2.75
37.25-34.50 = 2.75
34.50-31.75 = 2.75
Since you know she gives a discount of 2.75 per dog you can take that times the number of dogs (8).
8 x 2.75 = 22 per dog
Then take that amount and multiply it by the number of dogs she is walking.
8 x 22 = 176 for all 8 dogs
The measurements of angle A is 51 degrees
