Answer:
40%.
Explanation:
We have been given that the owners of Expo Company John Smith and Susan Jones invested $240,000 and $160,000 into the business respectively. We are asked to find the percentage of business owned by Susan.
Let us figure out total money invested in business by adding the money invested by John Smith and Susan Jones.
![\text{Total money invested in business}=\$240,000+\$160,000](https://img.qammunity.org/2020/formulas/mathematics/high-school/r46w5c2hrvzmshdldqttg2hlnlp2zxixh7.png)
![\text{Total money invested in business}=\$400,000](https://img.qammunity.org/2020/formulas/mathematics/high-school/9c0a971zad6gdroi2glz6qowzbn5t60o1w.png)
Now we will find $160,000 is what percent of $400,000.
![\text{Percentage of business Susan own}=(160,000)/(400,000)* 100](https://img.qammunity.org/2020/formulas/mathematics/high-school/omaf91gjiungb5ihs48fw88r9axnigz877.png)
![\text{Percentage of business Susan own}=0.4* 100](https://img.qammunity.org/2020/formulas/mathematics/high-school/kzjix2uffc40cg3gholq4wq074une8jsvk.png)
![\text{Percentage of business Susan own}=40](https://img.qammunity.org/2020/formulas/mathematics/high-school/vz0iniqj11c5i95eslkymdsm9r4xlgctyn.png)
Therefore, Susan owns 40% of the business.