Answer:
0.25in.
Step-by-step explanation:
5÷20=0.25in.
Eight tenths minus five tenths equals three tenths.
Answer:

Step-by-step explanation:
Notice that
.
The diagram already marks
, so we just need to find
.
and
are vertical angles, which means they are equal in measure.
Therefore,

Since there are
on each side of a line, we have the following equation:
.
Plugging in
, we have:
.
Therefore,
.
Step-by-step explanation:
Length of title to board = (1/3) : (1/2) = 2 : 3.
Area of tile to board = (1/3)² : (1:2)² = 4 : 9.