It is fractions on a number line right?
17/20
you want to get the bottom numbers the same by multiplying:)
5x4= 20 , 4x5= 20
since you multiplied the fraction with the denominator 5 by 4 , you also multiply the number on top by 4
3x4= 12
and since the other fraction with the denominator 4 was multiplied by 5 , you multiply the number on top by 5
1x5= 5
now you add those 2 numbers up
5+12= 17
you put that number on top of the fraction: 17
and take the number you ————
got from the first step and
put it on the bottom: 20
and you get 17/20 or .85
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)
Calculate them all.
a)16x+5(2x+8)-14=16x+10x+40-14=26+26x
b)26-2(3x)=26-6x
c)6x-28+10(x+4)-14=6x-28+10x+40-14=16x-2
d)26-6x
There are two equivalent ones, which give no real majority...