3. The human body is made up of about
18.5% carbon. What
part of Dr. Brooks
weight is not carbon if
he weighs 210 pounds?

Step-by-step explanation:

Dr Brooks weights 210 lbs

18.5 % is carbon

210*(18.5/100)=38.85

the part that is NOT carbon is

210-38.85=171.18 lbs

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have