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JimmySample7
17.08.2020 •
Mathematics
At 12:00 P.M., the water pressure on a submarine is 435 pounds per square inch. Ffom
12:00 P.M. to 12:30 P.M., the water pressure increases 58 pounds per square inch.
From 12:30 P.M. to 1:00 P.M., the water pressure decreases 116 pounds per square
inch. What is the water pressure at 1:00 P.M.?
0 261 pounds per square inch
493 pounds per square inch
O -58 pounds per square inch
O 609 pounds per square inch
O
Solved
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Ответ:
Step-by-step explanation:
The initial pressure was 435 pounds per square inch.
From 12:00 PM to 1:00 PM, the initial pressure increases by 58 pounds per square inch and then decreases 116 pounds per square inch.
⇒ 435 + 58 - 116
⇒ 377
Ответ:
Step-by-step explanation:
The initial pressure was 435 pounds / in.²
After that it increases by 58 pounds / in.²
So, it became
=> 435 + 58
=> 493 pounds / in.²
Then, it decreases by 116 pounds/square inch
=> 493 - 116
=> 377 pound / in.²
This is the final pressure.
Ответ:
Where 'y' is the total cost of renting the car and 'x' is the amount of miles the car was used.