Answer:
let ratio 6:4:2 be 6x,4x and 2x
we have
6x+4x+2x=180 sum of interior angle of the triangle is 180
12x=180
x=180/12=15
Step-by-step explanation:
missing Angle are
6x=6×15=<em><u>9</u></em><em><u>0</u></em><em><u>°</u></em>
4x=4×15=<em><u>6</u></em><em><u>0</u></em><em><u>°</u></em>
2x=2×15=<em><u>3</u></em><em><u>9</u></em><em><u>°</u></em>
Congruent because you can map the triangles using a reflection across the y-axis which is a rigid motion
ANSWER
The constant of variation is 6.
EXPLANATION
The inverse variation equation is:

We want to find the constant of variation, when x=-3 and y=-2.
We substitute the values for x and y to get,

Multiply out the left hand keeping in mind that negative times negative yields a positive result.
This implies that;

Hence the constant of variation is 6.
Eleven times a number X, minus a second number Y
So, The algebraic equation formed with this data is;
<h3>X×11-Y</h3>
200/5=40
He can buy 40 pens!!
Hope this helps!!