Answer:
(D)
Step-by-step explanation:
Solve by graphing:
Use a graphing tool to graph the lines 3x+2y= 12 and 6x + 3y = 21.
The line intercept at (2,3).
Therefore, option D is the correct answer.
<em>Brainiest Appreciated. </em>
16. 96 is 75% of 128
18. 200%
It is given that, Mrs. Jones bought three 2-kilogram packages of flour.
And

And three 2 -kilogram packages means she bought 6 kilogram flour .
So we need to convert 6 kilogram flour into grams.
If,

So she bought 6000 grams of flour .
Total length of the string =
yard
Length of string used for craft =
of total length of string
=
of 
= 
=
yard
Length of the string left after use = Total length of the string - Length of string used for craft
Length of the string left after use = 
=
Reducing it to the lowest term, we get
=
yard
Therefore, the length of string left is
yard.
We have that
tan x=5
we know that
tan x =sin x/ cos x
sin x/ cos x=5------> squaring-----> sin² x/cos² x=25
remember that
sin² x+cos² x=1-----> cos² x=1-sin² x
substitute
sin² x/[1-sin² x]=25
sin² x=25-25*sin² x
26*sin² x=25
sin² x=25/26
sin x=5/√26
cos² x=1-(5/√26)²----> 1-(25/26)----> 1/26
cos x=1/√26
the answers are
sin x=5/√26
cos x=1/√26