Answer:
80.2 pounds of cheaper beans and 109.8 pounds of high quality beans.
Step-by-step explanation:
Let x represent pounds of high quality beans and y represent pounds of cheaper bean.
We have been given that Sarah needs to prepare 190 pounds of blended coffee beans. We can represent this information in an equation as:
We are also told that Sarah needs to prepare 190 pounds of blended coffee beans selling for $3.80 per pound. She plans to do this by blending together a high-quality bean costing $4.75 per pound and a cheaper bean at $2.5.
We can represent this information in an equation as:
Upon substituting equation (1) in equation (2), we will get:
Therefore, Sarah should use 109.8 pounds of high quality beans.
Upon substituting in equation (1), we will get:
Therefore, Sarah should use 80.2 pounds of cheaper beans.
Answer:
Your friend
Step-by-step explanation:
16 divided by 4= 4 which is the unit rate
22 divided by 5 = 4.4 which is the unit rate
Answer:
A Plus Plumbing
Step-by-step explanation:
60(2)+80 = 120+80 = 200 < 250
Answer:
1
Step-by-step explanation:
Anything raised to the power of 0 is 1
Answer:
(4, -3)
Step-by-step explanation:
The system of equations can be described a number of ways. One possible description is "a consistent pair of linear equations in two variables."
Perhaps you want to know the solution to this system of equations. I find it easiest to graph them. The attached graph shows the solution to be ...
(x, y) = (4, -3)
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You can also use "elimination" to simplify the system to a single equation in a single variable. Adding 4 times the second equation to 3 times the first will do that.
3(5x +4y) +4(2x -3y) = 3(8) +4(17)
23x = 92 . . . . . simplify
x = 4 . . . . . . . . divide by 23
Substituting this value into the first equation, we have ...
5(4) +4y = 8
5 +y = 2 . . . . . . divide by 4
y = -3 . . . . . . . . subtract 5
The solution is (x, y) = (4, -3).