I don’t really understand what you mean?
Answer:
13.3 L of 5% salt solution and 11.7 L of 20% salt solution
Step-by-step explanation:
Let
x L = amount of 5% solution
y L = amount of 20% solution.
1. A chemistry teachers needs 25 liters of salt solution, then
2. A chemistry teachers needs 25 liters of a 12% salt solution, so there are
liters of salt.
Amount of salt in 5% solution liters
Amount of salt in 20% solution liters,
thus
3. Solve the system of two equations:
From the first equation,
Substitute it into the second equation:
Answer:
162.5 miles
Step-by-step explanation:
If one inch is 50 miles, than 3.25 inches would be 162.5 miles because 3.25 multiplied by 50 would give you 162.5 miles. Hope this answered your question!
Answer:
-3/4
Step-by-step explanation:
negative because as x grows y is more negative
slope < 1 because angle is < 45deg