Answer:
153/20
Step-by-step explanation:
I assume you're asking

So

=

Let
x------> <span>speed on the bicycle
y------> </span><span>speed walking
we know that
</span>x=6+y------> equation 1<span>
speed=distance /time-------> time=distance/speed
1/y=2.5/x-------> y=x/2.5------> x=2.5y-------> equation 2
equals 1 and 2
6+y=2.5y-----> 2.5y-y=6------> 1.5y=6-----> y=6/1.5-----> y=4 mi/h
x=6+y-----> x=6+4-----> x=10 mi/h
the answer is
the speed walking is 4 mi/h
</span><span>
</span>
Answer:
Using properties of parallelogram and angle sum property of a triangle in the figure as shown below in the attachment
In parallelogram ABCD, AC is a diagonal.
Given:
and
As, we know that opposite angles in parallelogram are equal.
therefore,

Now, in ΔADC
Sum of the measures of angles in a triangle is 180 degree.

Substituting the values of
and
we have;
or

Subtract
from both sides we get

Therefore, the measure of angle CAD is
.
Answer:
paki ayus po nang question ⁉️
Answer:
3x2y−3xy+12x−12
Take out 3xy common from first two terms and 12 from last two terms.
3xy(x−1)+12(x−1)
(x−1)(3xy+12)