1/18, 1/5,& 17/18
Hope these help!
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.
1) x = price of all the make up Janine bought
y = amount that Leah spent
x = y - 6
2) x = how many numbers Rob has
y = how many numbers Jay has
x = (y x 0.5) + 3
I think
For this case we must solve the expression given for the variable "m":
We add 5 to both sides of the inequality:
Multiplying by 2 to both of the inequality:
So, finally we have:
The solution is given by all values of m less than 4.
Answer:
