21/50, 87/200, 43.7%, 0.44
hope this helps.
Answer:
x=5
/4y+11/2
y=4/5x-22/5
Step-by-step explanation:
They are usually represented like this
commutative property of addition
a+b=b+a
associative property of additon
(a+b)+c=a+(b+c)
identity property of addition
a+0=a
so number sentatnces
lets say a=1,b=2,c=3
commutative property of addition
1+2=2+1
associative property of addition
(1+2)+3=1+(2+3)
identity property of addition
1+0=1