Answer:
- 
Step-by-step explanation:
=
( cross- multiply )
6x = 5y ( divide both sides by 6 )
x =
y
Then
← substitute x =
y into the expression
= 
= 
= 
=
× - 
= - 
Yes because all sides would be equal to 5 which would give you 5*4 = 20 units.
Answer:
110
Step-by-step explanation:
you place 30 in the place of X, and it becomes 4×30-10. in PEMDAS, multiplication goes first and 4×30=120. 120-10=110
It opens upward when X is an even power. It would be for X squared or X raised to the 4th power.
Answer:
No
Step-by-step explanation:
All whole numbers, positive, negative, and 0 are integers.