Question 1109957
.
<pre>
From the condition,  9 + 12 = 21  are  14%  of the entire children population in the daycare program:


    0.14x = 21.


Then  x = {{{21/0.14}}} = 150 is the entire children population.
</pre>

Solved.


-------------------
On percentage problems, see the lessons

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/percentage/lessons/Percentage-problems.lesson>Percentage problems</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Percentage-and-ratio-word-problems/Percentage-word-problems-%28Type-1-problems-Finding-the-Part%29.lesson>Percentage word problems (Type 1 problems, Finding the Part)</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Percentage-and-ratio-word-problems/Percentage-word-problems-%28Type-2-problems-Finding-the-Rate%29.lesson>Percentage word problems (Type 2 problems, Finding the Rate)</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Percentage-and-ratio-word-problems/Percentage-word-problems-%28Type-3-problems-Finding-the-Base%29.lesson>Percentage word problems (Type 3 problems, Finding the Base)</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Percentage-and-ratio-word-problems/More-complicated-percentage-problems.lesson>More complicated percentage problems</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Percentage-and-ratio-word-problems/Problems-on-percentage-that-lead-to-unexpected-results.lesson>Problems on percentage that lead to unexpected results</A>

in this site.


They are written specially for you.


Read them and become an expert in this area.