An alloy weighing 30 lbs. is 11% tin. The alloy was made by mixing a 15% tin alloy and a 9% tin alloy. How many pounds of each alloy were used to make the 11% alloy?

20 lbs of 9%

10 lbs of 15%

Step-by-step explanation:

x: 9%

y: 15%

x + y = 30

y = 30 - x

0.09x + 0.15y = 0.11(30)

0.09x + 0.15(30 - x) = 3.3

-0.06x = -1.2

x = 20

y = 10

y = 30 - x

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step-by-step explanation:

segment bisector

step-by-step explanation:

line segment bisector. definition: a line, ray or segment which cuts another line segment into two equal parts. try this drag one of the orange dots at a or b and note the the line ab always divides the line pq into two equal parts.

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