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
:-)
Answer:
Step-by-step explanation:
684 dollars
Area of rectangle = LxW = 13x7 = 91
Area of triangle = bxh/2 = 7x7/2= 24.5
Total area= 91+24.5= 115.5 in^2
Answer:
-885y+3
Step-by-step explanation:
Answer:
25in²
Step-by-step explanation:
a cube has 6 faces
all of these are equal
therefore you need to divided 150 by 6
that's 25
the answer is 25 in²
