Answer:
x is mL of 25% acid and y is mL of 50% acid
We set up 2 equations:
A) x + y = 250
B) .25 x + .50y = .35 * 250 which equals
B) .25x + .50y = 87.50 Multiplying A) by -.5
A) -.5x -.5y = -125 adding the equations we get
-.25x = -37.50
x = 150 mL
y = 100 mL
Source: http://www.1728.org/mixture.htm
Step-by-step explanation:
Answer:
the first two answers are perpendicular
Answer: True
You can break the polygon up into smaller pieces such as triangles. Find the area of each triangle, and then add up those smaller areas to get the overall total area.
Answer:
i had this question on a quiz a while back i believe the answer is 17
Step-by-step explanation:
