Answer:
Barbara's speed in clear weather is 
and in the thunderstorm is 
.
Step-by-step explanation:
Let 
be the speed and 
be the time Barbara drives in clear weather, and let 
be the speed and 
be the time she drives in the thunderstorm.
Barbara drives 22 mph lower in the thunderstorm than in the clear weather; therefore,
(1). 
Also,
(2). 
(3). 
,
and
(4). 
From equations (2) and (3) we get:
putting these in equation (4) we get:
and substituting for from equation (1) we get:
This equation can be rewritten as
which has solutions
We take the first solution 
because it gives a positive value for 
.
Thus, Barbara's speed in clear weather is and in the thunderstorm is .
I don’t know if this is what you’re asking but 14.1-191 = -176.9
Answer:
I think the answer is the last one
adjacent side / hypotenuse
I have absolutely no idea i hate math so much
<span> However 4(4x-3) -6x can be replaced by 16x-12 -6x using the distributive law then we may combine like terms to obtain 10x -12. RESPONSE TO UPDATE .. Since you provided the choices in your update, the choices equivalent to 10x -12 are A 12x -12 - 2x and C. 4x + 2(3x-6)</span>
