Peter bought some bicycles for 4,000 he sold them for 6,200 making $50 on each of the bicycles how many bicycles were there
2 answers:
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<h2>Answer: 2.8 miles</h2>
Step-by-step:
We can write it in the proportion
where x is our number of miles trying to find
We now cross multiply or use the butterfly method which I will demonstrate both
<h3>Cross Multiply</h3>We multiply the numerator with the dominator
so
and
or
Now for the
<h3>Butterfly Method </h3>You would do 7 times 24 divided by 60 or
Then simplify
so 2.8 miles in either method
We know from Euclidean Geometry and the properties of a centroid that GC=2GM. Now GM=sin60*GA=
. Hence CM=GC+GM=3*
. Now, since GM is normal to AB, we have by the pythagoeran theorem that:
Hence, we calculate from this that AC^2= 28, hence AC=2*
=BC. Thus, the perimeter of the triangle is 2+4*.
Hence, we calculate from this that AC^2= 28, hence AC=2*