A. 305
b. 900
c. 46
d. 157,019
A = (P/4)(P/2 - P/4)
= (P/4)^2
Therefore it is a square
Playground
256 yd^2
P least perimeter
256 = (P/4)^2
P/4 = √256
= 16
P = 4*16
= 64
The least fencing is 64 yards.
Hope I helped!
Answer:
<h2>It takes 36 minutes to fill the bathtub using just hot water.</h2>
Step-by-step explanation:
We are gonna name V the complete volume of the bathtub, which is filled a certain amount of minutes. Each filling rate or speed is gonna be expressed as:
.
So, if we apply this consideration to each case we have:
Using cold and hot water: 
Using only cold water: 
Using only hot water:
; because we don't knot the time it takes to fill the bathtub with hot water.
Now, as you can see, Cold and Hot water is a sum of cold water only and hot water only:

Solving the equation for <em>x: </em>

Therefore, it takes 36 minutes to fill the bathtub using just hot water.
Okay, let's do this~
we want v isolated on one side so let's bring w over through subtraction
now we have 5/9v=z-w
now, to get rid of that fraction attached to v, we will multiply it's reciprocal on both sides.
*the reciprocal of 5/9 is 9/5
(5/9) x (9/5) cancel each other leaving v isolated to the left
the other side should look like this 9/5(z-w)
now we put both parts together to end up with:
v= 9/5(z-w)
there you go! :D