Every rational expression can be written in infinitely many equvialent forms which is 3/3n-15/2.
Answer:
![P=2(S-lw)/h](https://tex.z-dn.net/?f=P%3D2%28S-lw%29%2Fh)
Step-by-step explanation:
we have that
The formula for the surface area of the enclosed space is
![S=lw+0.5Ph](https://tex.z-dn.net/?f=S%3Dlw%2B0.5Ph)
Solve for P
That means ------> isolate the variable P
Subtract lw both sides
![S-lw=lw+0.5Ph-lw](https://tex.z-dn.net/?f=S-lw%3Dlw%2B0.5Ph-lw)
![S-lw=0.5Ph](https://tex.z-dn.net/?f=S-lw%3D0.5Ph)
Multiply by 2 both sides
![2(S-lw)=(2)0.5Ph](https://tex.z-dn.net/?f=2%28S-lw%29%3D%282%290.5Ph)
![2(S-lw)=Ph](https://tex.z-dn.net/?f=2%28S-lw%29%3DPh)
Divide by h both sides
![2(S-lw)/h=Ph/h](https://tex.z-dn.net/?f=2%28S-lw%29%2Fh%3DPh%2Fh)
![2(S-lw)/h=P](https://tex.z-dn.net/?f=2%28S-lw%29%2Fh%3DP)
Rewrite
![P=2(S-lw)/h](https://tex.z-dn.net/?f=P%3D2%28S-lw%29%2Fh)
Answer:
37 pages per hour
Step-by-step explanation:
Given that :
Time Given to read = 45 minutes ; 45 / 60 = 0.75
Number of pages readable ad by Davida within the given time frame = 27 3/4 pages
David's reading rate in pages per hour :
Number of pages read / time taken (hrs)
[27 3/4] ÷ (45/60)
[111 / 4] ÷ (45/60)
(111 / 4 ) * (60/45)
(111 * 60) / (4 * 45)
6660 / 180
= 37 pages per hour
Answer:
AB = 1.33
Step-by-step explanation:
AB and QR are in a ratio of 3 to 8 so we can create this proportion:
(3x+5)/24 = 3/8
cross-multiply:
8(3x+5) = 72
divide each side by 8 to get:
3x + 5 = 9
3x = 4
x = 4/3 or 1.33 repeating
13/3.25 is equal to 4. That means it's 4 bucks per 1 inch