Answer:
42 ft
Step-by-step explanation:
4.2/1=4.2
4.2*10=42 ft
PLS GIVE BRAINLIEST
1) The ratio of used books to all books is 6:14
2) The ratio of used books to new books is 6:8
x = 3
2x + y - z = 3 → (1)
- x + y + 2z = 0 → (2)
3x + 2y + z = 9 → (3)
we require to eliminate the y and z terms from the equations
(1) + (3) : 5x + 3y = 12 → (4)
multiply (1) by 2
4x +2y - 2z = 6 → (5)
(2) + (5) : 3x + 3y = 6 → (6)
(4) - (6) : 2x = 6 ⇒ x = 3
1 step: Place the point of the compass on point M and draw an arc, making sure the width of the compass opening is greater than 1/2MN.
2 step: Place the point of the compass on point N and draw an arc that has the same radius as previous one.
3 step: Connect two points of intersection of drawn arcs. Obtained line will be bisector.
Answer: option D.
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