gwoodbyrne
04.06.2020 •
Mathematics
Carrie ran some of the miles and walked some of the miles in a 10-mile race. Each mile she ran took 9 minutes, and each mile she walked took
16 minutes. She finished the race in 120 minutes.
Which system of equations can be used to determine the number of miles Carrie ran, r, and walked, w?
A
r +9= 10
w + 16 = 120
В
r= 10
9r + 16w = 120
c.
r+w=10
9r + 16w = 120
D.
r+w= 10
16r + 9w = 120
Solved
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Ответ:
the initial temperature is 22.5 atm
Step-by-step explanation:
The law describing pressure-temperature relationship is the Gay-Lussac's Law.
The Mathematical Form of which is:
=>
Where P1 = ? , P2 = 30 atm, T1 = 600 K and T2 = 800 K
=>
=> P1 = 0.0375 * 600
=> P1 = 22.5 atm
So, the initial temperature is 22.5 atm