I don't know sorry, I'm just doing this to get myself some more points meng...
Step-by-step explanation:
80$ is original price so 100%
markup by 35% make price 135%
crossmultiplication
ans=108
For this case, the first thing we must do is define variables.
We have then:
x = pounds of type a coffee
y = pounds of type b coffee
We now write the system of equations:
5.95x + 4.45y = 490.05
y = 2x
Solving the system of equations we have:
x = 33
y = 66
Answer:
were used 33 pounds of type a coffee
To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y.
1) Multiply both coordinates by scale factor
2) Simplify
3) Graph (If required)
