Determine Which equation is parallel to line BC and which is perpendicular to line BC
1 answer:
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Answer:
58.33 lbs.
Step-by-step explanation:
There are already 25 lbs of alloy of copper
Of this 25 lbs, 20% is pure i.e. copper content = 25(0.5) = 5lbs.
Now available is
Copper Other metals
5 lbs 20 lbs
Let x lb of 30% copper is added.
Then new alloy will have 5+0.3x lb copper in total of 25+x lbs
Percentage pure =
Simplify to get
Hence answer is 58.33 lbs should be added.
Answer:
m <1 = 61
Step-by-step explanation:
We know that the angle adjacent to 130 is 50 degrees because linear angles are complementary.
Extending line t to make a triangle, we can find the angle adjacent to the angle labeled 111 ( and above it) is 69.
That makes the angle that touches line q 61 to finish the triangle
This angle and angle 1 are corresponding angles, so they are equal
<1 = 61
