Answer: Our required equation will be
![3d=4t](https://img.qammunity.org/2019/formulas/mathematics/middle-school/ngt94xvxsisu0qi0msk0ix0781wq880wnh.png)
Explanation:
Since we have given that
Jack and Jill walked 4 yards every three seconds
As we know that
![Speed=(Distance)/(Time)\\\\Speed=(4)/(3)\text{ yards per seconds}\\](https://img.qammunity.org/2019/formulas/mathematics/middle-school/h5lb9kpoiq3e906i86zvlchgiky6t5iisd.png)
Now, we need to find the find the equation to represent the distance,d,
Jack and Jill walked over time t .
So here it is,
![Distance=Speed* Time\\\\d=(4)/(3)* t\\\\d=(4)/(3)t\\\\3d=4t](https://img.qammunity.org/2019/formulas/mathematics/middle-school/velx4zk2dutbszibo1urvw4riugk1hvj3c.png)
Hence, our required equation will be
![3d=4t](https://img.qammunity.org/2019/formulas/mathematics/middle-school/ngt94xvxsisu0qi0msk0ix0781wq880wnh.png)