Two research submarines start to rise vertically toward the ocean surface. The Tri-I sub is at 4,863 feet below sea level (or –4,863 feet) and is ascending 81.1 feet per minute. The Quad-II sub is at 3,645 feet below sea level (or –3,645 feet) and is ascending 76.9 feet per minute. If the ocean surface is at 0 feet, how many minutes (
m
) must elapse for the two submarines to reach the same depth?
6.
Step 1: Choose the general equation for this situation.
rate of ascent of Quad-II sub
≤
rate of ascent of Tri-I sub
rate of ascent of Tri-I sub = rate of ascent of Quad-II sub
depth of Quad-II sub
≤
depth of Tri-I sub
depth of Quad-II sub = depth of Tri-I sub
number of minutes elapsed for Tri-I sub = number of minutes elapsed for Quad-II sub
7.
Step 3: Select the correct equation for the given situation. Then, select the solution for that equation.
m
=
290
minutes
m
=
145
minutes
-
4
,
863
+
81.1
m
=
-
3
,
645
+
76.9
m
-
4
,
863
+
76.9
m
=
-
3
,
645
+
81.1
m
m
≤
53.8
minutes
-
4
,
863
-
81.1
m
≥
-
3
,
645
+
76.9
m
m
=
53.8
minutes
4
,
863
-
76.9
m
=
3
,
645
-
81.1
m
8.
Step 2: What does the variable represent in this problem?
The variable
m
represents the depth in feet.
The variable
m
represents the distance between the two subs in feet.
The variable
m
represents the number of minutes elapsed.
The variable
m
represents the rate of ascent in feet per minute.
Answers: 3
History, 22.06.2019 05:30, milkshakegrande101
John locke believed there was a social contract between a govemment and its people. what were the details of this contract?
Answers: 2
History, 22.06.2019 07:00, xuzixin2004
With state which alliance promoted goals and protection of the united states and which alliance promoted goals and protection of the soviet union. site and explain evidence from each primary source to support your answers.
Answers: 1
History, 22.06.2019 10:30, lexybellx3
The passage of alien and sedition acts led directly to what?
Answers: 1
Two research submarines start to rise vertically toward the ocean surface. The Tri-I sub is at 4,863...
Mathematics, 28.08.2020 20:01
Mathematics, 28.08.2020 20:01
English, 28.08.2020 20:01