Answer:

Step-by-step explanation:
we know that
In a parallelogram opposite sides are congruent
In this problem
we have that
AB and DC are opposite sides
AD and BC are opposite sides
so
AB=DC
AD=BC
step 1
Find the value of x
AB=DC
substitute the given values

solve for x



step 2
Find the length of AD
we have that

substitute the value of x

step 3
Find the length of BC
Remember that
AD=BC ----> by opposite sides
therefore

Answer:
400
Step-by-step explanation:
if the train travel in 150miles in 3hr then\
150/3=50miles a hr
50 x 8 = 400 miles
The answer would be 1380000
Answer:
-2 13/1000
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation:
3x = 12
divide by 3
x =12/3