Give brainlsit A group of nine marine scientists is exploring an underwater cave three hundred twenty meters below the surface in Macedonia. The scientists work below the surface in eight-hour shifts. They travel up and down in a pair of diving bells, and each holds three people. When one crew is coming up, the other is being lowered at the same time. The diving bells can be lowered at the rate of thirty two meters per minute but can be raised at the rate of only eight meters per minute. Assume that both diving bells start at the same time and that distances above sea level are positive ones. One of the values you will find in the worksheet below will not make sense in reality. For an extra challenge, you may consider on your own which one it is and why it does not make sense outside of the algebraic model.
Define units for the time, the depth of the diving bell going down, and the depth of the diving bell coming up. Enter a variable for the time and use this variable to write expressions for the depth of the diving bell going down and the depth of the diving bell coming up.

1 What is the depth of each bell after twenty eight minutes?

2 How long does the crew coming up take to reach the surface?

3 How long does the crew going down take to reach the cave?

4 When do the diving bells pass each other during the changeover?

5 After completing the worksheet, graph your model.

this story was prepared by jim

mccullaugh in los angeles and

al stewart in new york.

new york the colossal success of "top gun" appears to have dramatically altered madison avenue's

perception of corporate sponsorship

of home video projects.

the paramount home video re- lease, featuring a 60- second diet

pepsi spot, was by no means the

first prerecorded video to carry an advertiser's plug, but it was the

first major theatrical release to do so. in the aftermath of the title's

success, paramount is widely ex- pected to ink a similar deal for

"crocodile dundee" or "star trek

iv" or both.

corporate america's new attraccds push british

recording sales

to 19% gain

london fueled by the compact

disk boom, the value of u.k. manu- facturer shipments of recordings

rose 19% in the 12 -month period ended march 1987, according to the

british phonographic industry.

total value of u.k. shipments for

the period was $755 million for all

configurations. (all value figures

are based on an exchange rate of

$1.68 to the pound sterling.)

cd sales totaled 10.7 million units

worth $121.3 million- compared

with 3.7 million units worth $39.5

million in the prior 12 months -and

accounted for two -thirds of the

overall gain in trade value. at present growth rates, says the bpi, cd

sales for calendar 1987 will reach 20

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step-by-step explanation:

answer: it's d

step-by-step explanation: