Answer:
105
Step-by-step explanation:
500 goes into 100, 5 times
21 times 5 is 105
So 21/100 is equal to 105/500
Or you can do
500*0.21=105
X+Y=8 »» X=8-Y
now we can substitute X with 8-Y in the second equation, which was X-Y=2
X-Y=2 »» (8-Y)-Y=2 »» 8-2Y=2 »» 2Y=8-2 »» Y=6/2 »» Y=3
since X=8-Y, and Y=3, so X=8-3=5
X=5 and Y=3
<h2>
Answer:</h2>
Two are the keys of this problem. First, a parallelogram is a quadrilateral (a polygon with four sides) where both pairs of opposite sides are parallel. Second, for every parallelogram its diagonals bisect each other, that is, each diagonal is divided into two equal parts. So, from the figure it is true that:
Since
Then: