%/100 = is / of
7 is what percent of 30
is = 7
of = 30
% = x
now sub into the formula
x/100 = 7/30
cross multiply
(30)(x) = (7)(100)
30x = 700
x = 700/30
x = 23 1/3% or 23.33%
12+14+16=42 is your answe
The area is 3.14*r^2
<span>The rotating valve would be in the center of the circular wet patch so if it's spraying in all directions, then 15 ft = radius. </span>
<span>Now plug it in. </span>
<span>3.14 x (15)^2 = 706.5 ft^2</span>
Given:
A car traveled 150 km in 3 hour.
To find:
The unit rate.
Solution:
We have,
Distance = 150 km
Time = 3 hours.
In this case speed is the unit rate.
![Speed=\dfrac{Distance}{Time}](https://tex.z-dn.net/?f=Speed%3D%5Cdfrac%7BDistance%7D%7BTime%7D)
Substituting the given values, we get
![Speed=\dfrac{150\text{ km}}{3\text{ hr}}](https://tex.z-dn.net/?f=Speed%3D%5Cdfrac%7B150%5Ctext%7B%20km%7D%7D%7B3%5Ctext%7B%20hr%7D%7D)
![Speed=50\text{ km/h}](https://tex.z-dn.net/?f=Speed%3D50%5Ctext%7B%20km%2Fh%7D)
Therefore, the unit rate is 50 km/h.