Answer:
weeks
Step-by-step explanation:
Given
It takes 14 weeks to empty a lake
also it takes 20 weeks for a river to fill the lake
Part of lake empty in 1 week ![=\frac{1}{14}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B1%7D%7B14%7D)
Part of lake filled in 1 week is ![=\frac{1}{20}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B1%7D%7B20%7D)
And if both works simultaneously then
![\frac{1}{14}-\frac{1}{20}=\frac{10-7}{140}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B14%7D-%5Cfrac%7B1%7D%7B20%7D%3D%5Cfrac%7B10-7%7D%7B140%7D)
![=\frac{3}{140}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B3%7D%7B140%7D)
therefore it takes
weeks to fill it
a .right and absolute value function family
Step-by-step explanation:
−3x−6+(−1)
-3x-7
<h2>Hope it helps you</h2>