Step-by-step explanation:
The main thing to note here is that once you go past the decimal point, the answers also go past the decimal point.

Answer:
6.5
Step-by-step explanation:
you take the sides all added up (which was 13in) and divided it by two
It has a decimal making it have different value. Without the decimal it is a whole number. Its not really an explanation, but stuff like that is hard to explain.
Answer:
x=-3, y=9. (-3, 9).
Step-by-step explanation:
-9x-5y=-18
4x+5y=33
---------------
-5x=15
x=15/-5
x=-3
4(-3)+5y=33
-12+5y=33
5y=33-(-12)
5y=33+12
5y=45
y=45/5
y=9
Answer:

Step-by-step explanation:
we know that
The total fabric that Mrs. Lin needs is equal to

Convert mixed number to an improper fraction



substitute



Convert to mixed number
