Question

A submarine dove from the surface at a rate of 50 meters per minute. It is now at a depth of 450 meters. Write a numeric equation using negatives to show the number of minutes it took to get to the current depth.

Answer 1

Step-by-step explanation

Step1

let

`\begin{gathered} \text{rate}=-50\frac{mt}{\text{sec}} \\ \text{rate}=\frac{dis\tan ce}{\text{time}} \end{gathered}`
`\begin{gathered} y_1=initial\text{ position=0} \\ y_2=\text{ final positivion=-50} \\ \text{time}=\text{ 1 minute} \end{gathered}`

Step 2

equation

`\begin{gathered} time=\text{ }\frac{\text{distance}}{-50}\text{ Equation(1)} \\ \\ \text{replacing} \\ \text{time}=\frac{-450\text{ mt}}{-50\text{ }(mt)/(\min)} \\ \text{time}=9\text{ minutes} \end{gathered}`

I hope this helps you