angelinamadriga
09.11.2019 •
Mathematics
Adiver begins at sea level and dives down 200 feet. he ascends at a steady rate of 121/3 feet per minute for 4.5 minutes. this depth is represented by the numerical expression:
-200 + 121
3
(4.5)
simplify the expression using the order of operations. what is the diver’s depth?
-200 + 37
3
(4.5)
-200 + 55.5
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Ответ:
The diver's depth is 144.5 feet below sea level.
Step-by-step explanation:
Let's find out the answer using the information given:
Depth of the diver = - 200 feet (below sea level)
Ascent speed = 12 1/3 feet per minute
Ascent duration = 4.5 minutes
Diver's depth after the ascent = - 200 + 12 1/3 * (4.5)
Diver's depth after the ascent = - 200 + 37/3 * (4.5)
Diver's depth after the ascent = - 200 + 12.33 * (4.5)
Diver's depth after the ascent = - 200 + 55.5
Diver's depth after the ascent = - 144.5
After ascending 4.5 minutes, the diver will be 144.5 feet below sea level.
Ответ:
The answer is 25cm^2