The answer for you problem is 6
Let the price of 1 liter of milk be m, and let the price of 1 loaf of bread be b.
3 liters of milk cost 3m.
5 loaves of bread cost 5b.
The total is $11.
That gives us the first equation:
3m + 5b = 11
4 liters of milk cost 4m.
4 loaves of bread cost 4b.
The total is $10.
That gives us the second equation:
4m + 4b = 10
We have a system of two equations.
3m + 5b = 11
4m + 4b = 10
Multiply the first equation by -4.
Multiply the second equation by 3.
Then, add the equations.
-12m - 20b = -44
+ 12m + 12b = 30
---------------------------
-8b = -14
b = 14/8 = 7/4 = 1.75
Now substitute b with 1.75 in the first original equation.
3m + 5b = 11
3m + 5(1.75) = 11
3m + 8.75 = 11
3m = 2.25
m = 0.75
Answer: A liter of milk costs $0.75, and a loaf of brad costs $1.75.
x(x-6)^2
let me know if this worked!
57 miles about I'm not positive but I think this is right
Answer:
<em>Answer: 12 milliliters</em>
Step-by-step explanation:
<u>Proportions</u>
Each vial contains 250 milligrams of aminophylline in 10 milliliters. This means the concentration of aminophylline in the vials is 250/10 = 25 milligrams/milliliter.
To administer 300 milligrams of aminophylline, we need to find the number of milliliters according to the concentration calculated above.
If each milliliter adds up to 25 milligrams, then to have 300 milligrams, 300/25 = 12 milliliters of aminophylline vials are needed.
Answer: 12 milliliters
