Answer:
Approximately 104 joggers are female
Step-by-step explanation:
The U.S census bureau reported that 9 out of every 20 joggers at female.
Let x be the number of females out of 230 joggers.
Rewrite it as
[tex]\begin{array}{cc}\text{Female}&\text{All joggers}\\9&20\\x&230\end{array}[/tex]
Now we can write a proportion:
[tex]\dfrac{9}{x}=\dfrac{20}{230}[/tex]
Cross multiply:
[tex]20x=9\cdot 230\\ \\2x=9\cdot 23\ [\text{Divided by 10}]\\ \\x=\dfrac{9\cdot 23}{2}=\dfrac{207}{2}=103.5\approx 104[/tex]
