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anonymous
 one year ago
An underground mine elevator descends 12% of the total depth every minute. The total depth of the elevator is 75 meters below the ground.
How many meters below the ground is the elevator after 2 minutes?
A: 18 meters
B: 9 meters
C: 4.5 meters
D: 22.5 meters
anonymous
 one year ago
An underground mine elevator descends 12% of the total depth every minute. The total depth of the elevator is 75 meters below the ground. How many meters below the ground is the elevator after 2 minutes? A: 18 meters B: 9 meters C: 4.5 meters D: 22.5 meters

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@vera_ewing can you please help me :) Please?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1If it descends 12% of the total length in 1 minute, how much percent does it descend in 2 minutes?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Correct. Now you need to find what 24% of 75 meters is.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1What is 24% of 75 = ? To find a percent of a number, divide the percent by 100 and multiply by the number. 24% of 75 = = 24/100 * 75 = 0.24 * 75

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1Correct. It descends 9 m every min, so after 2 min, it's at the 18 m mark.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you Guys Soooooo much I r eally Apreciate it :) @mathstudent55 @jim_thompson5910

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Yes, since 24% of 75 m is 18 m, it descends 18 m in the first two minutes. Since it is descending, it is losing altitude, so you can call the displacement 18 m. (Strictly speaking, the way the question was asked, the answer should be 18 m, not 18 m, but you don't have such a choice.)
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