Step-by-step explanation:
use mathaway! it helps a lot
We have that
<span> 5x/7=22
multiply by 7 both sides
5x=22*7-------> 5x=154
divide by 5 both sides
x=154/5
x=30.8--------> x=30 4/5
the answer is
x=30 4/5</span>
Answer:
2 percent
Step-by-step explanation:
We can use two separate fractions, one representing the amount of physics majors expected and the amount of seniors expected in physics majors by the university.
![\frac{400x}{66} = \frac{400}{3600}](https://tex.z-dn.net/?f=%5Cfrac%7B400x%7D%7B66%7D%20%3D%20%5Cfrac%7B400%7D%7B3600%7D)
Now cross multiply.
![\frac{66*400}{400x * 3600}](https://tex.z-dn.net/?f=%5Cfrac%7B66%2A400%7D%7B400x%20%2A%203600%7D)
x will be removed.
![\frac{26400}{1320000}](https://tex.z-dn.net/?f=%5Cfrac%7B26400%7D%7B1320000%7D)
Simplifying this fraction will get you
, which in percentage form, will be 2 percent.