Answer: X=3
Step-by-step explanation:
5x+2x+14=14x-7
7x+14=14x-7
7x-14x=-7-14
-7x=-21
x=3
Area of Rectangle: 64
Area of two semi circles: 12.56637061
Add together for total area
This is all about proportions. You can make this into fractions:
3/5 = 12/x
A good way to handle this, is to make one of those numbers the same. If you do (3/5) * 4, you would get 12/20 (because 4 * 3 = 12 and 4 * 5 = 20)
So then you have this:
12/20 = 12/x
It's basically a fill in the blank from there. x= 20
Elena's team played 20 games
Answer: 
<u>Do Keep Change Flip (KCF)</u>
Keep: 
Change: ÷ into ×
Flip: 
into 
<u>Multiply</u>
<u>Divide</u>
