"A 90° counterclockwise rotation around point B of pre-image VWXYZ" is the statement among the following choices given in the question that <span>is the correct description of the transformation of figure VWXYZ to figure VꞌWꞌXꞌYꞌZꞌ. The correct option among all the options that are given in the question is the third option or option "C".</span>
Let
x--------> volume of 50% fertilizer
y--------> volume of 30% fertilizer
we know that
x+y=160-----> x=160-y-----> equation 1
x*0.5+y*0.3=160*0.4-----> equation 2
substitute equation 1 in equation 2
[160-y]*0.5+0.3*y=63.8----> 77-0.35*y+0.25*y=63.8
0.10*y=13.2------> y=13.2/0.10----> y=132 gal
x=220-y----> x=220-132----> x=88 gal
the answer is
88 gal of 50% fertilizer
132 gal 30% fertilizer
In the equation
F = (9/5)C + 32
F usually represents degrees on the Fahrenheit scale, and C usually represents degrees on the Celsius scale.
_____
Since your fraction is 9/8, this is not the relation between Fahrenheit and Celsius, so the meaning is unknown. It would need to be defined by whoever wrote the equation.