Step-by-step explanation:
If a variables varies jointly, we can just divide it by the other variables in relation to it.
For example, since p variables jointly as q and square of r, then
![\frac{p}{q {r}^{2} } = k](https://tex.z-dn.net/?f=%20%5Cfrac%7Bp%7D%7Bq%20%7Br%7D%5E%7B2%7D%20%7D%20%20%3D%20k)
where k is a constant
First, let find k. Substitute p= 200
q= 2, and r=3.
![\frac{200}{2(3) {}^{2} } = k](https://tex.z-dn.net/?f=%20%5Cfrac%7B200%7D%7B2%283%29%20%7B%7D%5E%7B2%7D%20%7D%20%20%3D%20k)
![\frac{200}{18} = k](https://tex.z-dn.net/?f=%20%5Cfrac%7B200%7D%7B18%7D%20%20%3D%20k)
![\frac{100}{9} = k](https://tex.z-dn.net/?f=%20%5Cfrac%7B100%7D%7B9%7D%20%20%3D%20k)
Now, since we know our constant, let find p.
![\frac{p}{q {r}^{2} } = \frac{100}{9}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bp%7D%7Bq%20%7Br%7D%5E%7B2%7D%20%7D%20%20%3D%20%20%5Cfrac%7B100%7D%7B9%7D%20)
Q is 5, and r is 2.
![\frac{p}{5( {2}^{2}) } = \frac{100}{9}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bp%7D%7B5%28%20%7B2%7D%5E%7B2%7D%29%20%7D%20%20%3D%20%20%5Cfrac%7B100%7D%7B9%7D%20)
![\frac{p}{20} = \frac{100}{9}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bp%7D%7B20%7D%20%20%3D%20%20%5Cfrac%7B100%7D%7B9%7D%20)
![p = \frac{2000}{9}](https://tex.z-dn.net/?f=p%20%3D%20%20%5Cfrac%7B2000%7D%7B9%7D%20)
Answer:
7cm
Step-by-step explanation:
One side of a square is increased by 8 cm, let us say the length got increased by 8 cm. So we have length of x + 8 cm
An adjacent side, the width, decreased by 2 cm. So we have width of x - 2cm
Perimeter of rectangle = 2(length + width)
40 = 2( (x + 8) + ( x - 2) )
40 = 2( 2x + 6)
40 = 4x + 12
28 = 4x
x = 7 cm
That is 7 cm of the length of the side of the square
There are 1760 yards in one mile and the rink is 250 yard in perimeter.
This means 3 miles is 5280 yards.
If Sam has already gone around the whole rink 6 times, that means he was traveled a total of 1500 yards.
Sam has 3780 more yards to travel 3 miles.
This means he needs to do 15.12 more laps around the rink. Or 16 if you are rounding.
Hope this helps! :)
Step-by-step explanation:
this is the right answer..hope it helped you .
Answer:
being blind
Step-by-step explanation:
if you are blind you can not see your self so there for you are invisable