Replace y with 200 ( amount of water in the tank) and solve for x:
200 = 450 -20x
Subtract 450 from both sides:
-250 = -20x
Divide both sides by-20:
X = 12.5
The answer is A. 12.5 minutes
Answer:
y=6x-6
Step-by-step explanation:
The slope equation is: y=mx+b
Keep in mind that m= slope and b= y-intercept
Since this problem gives us both of the things needed to complete the equation, we just need to plug it in.
m, (slope) = 6
b, (y-intercept) = -9
y= 6x-6
Answer:
The bags would weigh 27lbs. multiply 4 1/2 and6 and you get 27lbs.
First we need to write the equations for the given scenario. Using the equations, we can form a system of matrix for the situation.
Let the customer buys, x pounds of almonds, y pounds of cashews and z pounds of walnuts. Since he buys 12 pounds of mixed nuts, we can write:
Total cost of these mixed nuts was $118. So we can write:
Customer buys 2 more pounds of walnut than cashews. So, we can write:
Using these equations, we can set up the system of matrix as shown below in the image.