Answer:
5mph
Step-by-step explanation:
Let speed of boat in still water is s.
Distance proportional to speed
90/10 = (s+ 4)/(s - 4)
=> 9s - 36 = s + 4
=> 8s = 40
=> s= 5 mph
:-)
The area of a rectangular invitation card is 3/10 square foot. given that the length of the card is 4/5 foot, find its perimeter.
Answer:
C) v≤-5
Step-by-step explanation:
Divide each side by 4,
Answer:
a
Step-by-step explanation:
Answer:
you have to do 52 divided by cos of 38 to get the answer of 65.99ft
