25% of the total students = 28
0.25x = 28....where x is the total students
x = 28 / 0.25
x = 112 <== total students in 8th grade
1 inch for 40 inches. 7 inches would be 280 miles
This is a very interesting equation.
Remember: The "solution" to the equation is the number that ' k ' must be
in order to make the equation a true statement.
<u>-3k = -5k</u>
Divide each side of the equation by ' k ' .
Then you have
-3 = -5 .
Is there ANY value for ' k ' that can make that a true statement ?
I don't think so.
This equation has NO solution.
529.72......................