Answer:
20
Step-by-step explanation:
The midsegment of a trapezoid is calculated as
= 
= 
= 20
Answer:
10 mph
Step-by-step explanation:
speed of boat in still water = x
speed of current = 5
speed of boat with current (downstream) = x + 5
speed of boat against current (upstream) = x - 5
distance downstream = 9
distance upstream = 3
time = t
speed = distance/time
distance = speed × time
downstream:
9 = (x + 5)t
upstream:
3 = (x - 5)t
9 = xt + 5t
3 = xt - 5t
9 = xt + 5t
-3 = -xt + 5t
-----------------
6 = 10t
t = 0.6
9 = (x + 5)0.6
15 = x + 5
x = 10
Answer:
3rd one
Step-by-step explanation:
Answer:
6 % is the answer
Step-by-step explanation:
6.50 x 6%=0.39
6.50+0.39=6.89
