Question

PLEASE HELP ILL MEDAL
A scuba diver was exploring a reef 32.12 m below sea level. The diver ascended to the surface at a rate of 8.8 m/min.
(a) Write an equation to model the situation. Use the formula d = rt.
(b) Explain why it is reasonable to write the distance, d, as a positive number.
(c) How long did it take the diver to reach the surface?
Answer a b then c

Answer 1

d = 32.12 m;
r = 8.8 m / min;
t = ?
The formula is:
d = r t
t = d / r
t = 32.12 m : 8.8 m/min
t = 3.65 min = 3 minutes and 39 seconds

Answer 2

So
(a) 32.12m=8.8
(b) What
(c) 3.65= 3 mins and 39 seconds

Answer 3

(a) d = rt
plug in the given values
32.12 = 8.8t

Answer 4

(b) He is ascending so its reasonable to make the distance d positive.

Answer 5

Also the time and the rate will be positive so the distance will be positive

Answer 6

(c) ???

Answer 7

How long did it take??? (c)????

Answer 8

Note: if d = r t, then t = d / r. Just divide the distance by the rate (speed).

Answer 9

All I need is (c) PLEASEEEEEE TELLLL MEEEEEEEEEE :-(

Answer 10

Please be sure to include units of measurement in your work and your work.

It's important to me (if not to you?) that you understand the principles involved here.

d = r t is a general formula: distance equals rate times time. You MUST know this.

If you want to calculate the amount of time required for the diver to ascend at 8.8 m/min when the distance involved is 32.12 m, you must divide this distance by the rate.

Give it a try, please. Share your work.

Answer 11

3.65, I dont know

Answer 12

Where are your units of measurement? Your 3.65 is OK, but 3.65 can't stand alone.

Answer 13

What is\[\frac{ 32.12~m }{ 8.8\frac{ m }{ \sec } }?\]

Answer 14

Notice how you may cancel "m" here. m/m = 1

Answer 15

3.65m/sec ???

Answer 16

What is \[\frac{ 1 }{ \frac{ 1 }{ \sec } }?\]

Answer 17

1?

Answer 18

But do we really measure time in meters per second?

Answer 19

Idk

Answer 20

What do you know and what do you not know? We have the opp to clear things up here. I'll guide you but will not give you a direct answer.

Answer 21

Once again: You must divide the distance by the rate (speed).

Answer 22

time = distance / speed

Answer 23

\[time=t=\frac{ distance }{ speed}=\frac{ 32.12~m }{ 8.8\frac{ m }{ \sec } }=?\]

Answer 24

You have already gotten the numeric value correct; it is 3.65. But...3.65 what?

Please simplify: \[\frac{ 1 }{ \frac{ 1 }{ \sec } }\]

Answer 25

3.65 m/sec

Answer 26

which is the logical unit of measurement for time here?

meters per second, or seconds, or something else?

Answer 27

Does it sound right to say "The time elapsed was 5 meters per second?"

Answer 28

How many hours of sleep do you get each night?

Answer 29

It took 3.65m/sec for the diver to reach the surface

Answer 30

8-9hours y

Answer 31

But m/sec is speed, not time. You want time, not speed.

Answer 32

You gave me the correct unit of measurement there: You get 9 hours of sleep. Great. correct. you would not answer with "9 miles per hour," would you?

Answer 33

so seconds per m

Answer 34

Why does 'm' show up here?

Answer 35

3.6 minuntes?

Answer 36

Note this example: 1 divided by 1/8 is\[\frac{ 1 }{ \frac{ 1 }{ 8 } }=8\]

Answer 37

Yes. It takes the diver 3.65 sec to ascend 32.10 m. Yes.

Answer 38

In summary, time = distance / rate.

Answer 39

Okay so it takes the diver 3.65sec to ascend 32.10m

Answer 40

that's completely correct. Very good!

Answer 41

Thank you!!