20 = 2/5x + 8
20 - 8 = 2/5x
12 = 2/5x
12 × 5 = 2x
60 = 2x
60/2 = x
30 = x
x = 30
hope that helps, God bless!
Answer:
Step-by-step explanation:
49p9q3r24 7² 3² 3 24
81p12q15r12 9² 12 15 12
121p9q3r6 11² 3² 3 6
343p6q21r6 342 6 21 6
A pentagon has 5 sides, 12 pentagons have 60 sides.
A hexagon has 6 sides, 20 hexagons have 120 sides.
In total, there are 120 + 60 = 180 sides.
However, if you look (or imagine) at any ball, you can see that each side is touching two faces. This means that every 2 sides in those 180 sides join together to form one seam.
So, there are 180/2 = 90 seams.
Just for fun, a soccer ball is a truncated icosahedron. You can easily verify online that it has 90 edges.
Answer:
40
Step-by-step explanation:
10*4
i havnt done this in a while but this is what i got
Answer:
Quadrant 1 is the top right side. Quadrant 2 is top left. Quuadrant 3 is bottom left. Quadrant 4 is bottom right.
Step-by-step explanation:
<h3>
You must mark the number on the quadrants starting by the middle is the axis (0). Then you count from 1 to how ever much the quadrants end. There the y axis and the x. Those are the lines that seperate the 4 quadrants. Quadrant 1 is both postive #. quadrant 2 is a negative number and a postive. depending on how the x and y are. the X axis is spostive the y is negative. Point A is (10,4) and its quadrant is 4. You must count all the boxes which go all the way up to 10. You must start in the center then either go up for Y or down. Go right or left for X. B is -8,9</h3><h3>
</h3><h3>
I hope this helped. It took me a long time. </h3>