<h3>Answer:</h3>
6 in
<h3>Explanation:</h3>
Let M be the midpoint of AB. ∆CMB and ∆CMA are both isosceles triangles, so CM = (AB)/2 = 9 in.
CG = (2/3)(CM) = (2/3)(9 in)
CG = 6 in
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<em>Comment on centroid and median</em>
The centroid of a triangle is located 1/3 the distance from the midpoint of a side to the opposite vertex. This is true for any median in any triangle. The proof can be developed from the fact that every median divides the triangle's area in half. Here, we just take advantage of this fact.
Answer:
12 cleaners
Step-by-step explanation:
8 cleaner can clean in 3 hours = 1 office
1 cleaner can clean in 3 hours = 
part of job
1 cleaner can clean in 1 hours = 
part of job
Let the number of cleaner required to finish the job in 2 hours = x
hence
x cleaner can clean in 1 hours = 
part of job
x cleaner can clean in 2 hours = 
part of job
Hence
Hence we need 12 men to complete the same job in 2 hours
Answer:
$550=100%
550 divided by 100=$5.5=1%
5.5x7=$38.5=7%
$38.50+550=588.50$
Answer:
15 table
Step-by-step explanation:
-----→15×3=45
-----→15×7=105
