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Unit 1. Lesson 10 Exit Ticket

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1.) A deep-sea diver descends below the surface of the water at a rate of 5.5 feet each minute. What is the

depth of the diver after 1.3 minutes?

Write an expression to represent the problem:

Solve your expression in the box below and write your answer on the blank provided.

Answer

Respuesta :

Answer:

The required expression for the depth is [tex]5.5t[/tex] feet.

The depth after 1.3 minutes is 71.5 feet.

Step-by-step explanation:

Let d be the depth of the sea below the surface of the water.

The rate of descending or the rate of increasing the depth, [tex]r= 5.5[/tex] feet/min.

Since, the rate is constant, so,

If the diver reaches the depth, [tex]d[/tex], in time, [tex]t[/tex]. So,

[tex]r= d/t[/tex]

[tex]\Rightarrow d=r\times t[/tex]

So, for [tex]r=5.5[/tex] feet/min, the required expression for the depth is [tex]5.5t[/tex] feet.

After time t= 1.3 minutes.

The depth, [tex]d = 5.5 \times 1.3 = 71.5[/tex] feet.

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