Question

During a drought, the water level of a lake changes -1 1/3 ft. Pwr day.Write and solve an equation to find out how long it takes for the water level to change -16 ft.

Answer 1

12 days for the water level to change -16 feet

Ste-3.2x=-16p-by-step explanation:

Answer 2

It takes 12 days for the water level to change -16 feet

Solution:

Given that

During a drought, the water level of a lake changes
`-1(1)/(3)` feet per day.

Let assume number of days required for change of water level to -16ft = "x"

`\text { As given that change of water level in } 1 \text { day }=-1 (1)/(3) \text { feet }=-(4)/(3) \text { feet }`

So change of water level in "x" days is:

`=x * \text { change of water level in } 1 \text { day }=x *-(4)/(3)=-(4)/(3) x`

As we assumed that change in “x” days in water level = -16feet

`\begin{array}{l}{=>-(4)/(3) x=-16} \\\\ {=>x=(-16 * 3)/(-4)=12 \text { days }}\end{array}`

Hence it takes 12 days for the water level to change -16 feet