Answer:
9 mph
Step-by-step explanation:
-let x be the speed of current and t be time. The speed equation for both directions can then be represented as:

#Since t is equal in both, we can do away with t.
#We the divide the downstream equation by the upstream equation as:

Hence, the boat's speed in still water is 9 mph
Answer:
<em>The correct option will be: (b) 7 feet.</em>
Step-by-step explanation:
Suppose, the length of the garden is
feet.
As the <u>shape of the garden is like a square, then the area of the garden</u> will be:
feet²
Given that, the <u>area is 52 square feet</u>. So, the equation will be.......

So, the approximate length of the garden will be 7 feet.
What is the the x’s value?
8-4=4
4-(3/4)= 3.25 or 3 1/4
4 5/8 as an improper fraction is 37/8
——> 8*4=32 32+5=37
As a mixed number it is the same I think. 5 can’t decide into 8 so it stays 4 5/8.
Hopefully this helps...