Answer:
360 rooms
Step-by-step explanation:
6/432 = 1/x
= (432 *1)/6 = 72 unoccupied rooms.
432 + 72 = 504 (total rooms)
Ratio on Saturday: 2:5 (2+5=7)
504/7 = 72
72 x 5 = 360 unoccupied rooms on Saturday.
6y +4 = 8 + 2y + 2y
2y + 4 = 8
2y = 4
y = 2
The piece of unknown metal is in thermal equilibrium with water such that Q of metal is equal to Q of the water. We write this equality as follows:
-Qm = Qw
Mass of metal (Cm)(ΔT) = Mass of water (Cw) (ΔT)
where C is the specific heat capacities of the materials.
We calculate as follows:
-(Mass of metal (Cm)(ΔT)) = Mass of water (Cw) (ΔT)
-68.6 (Cm)(52.1 - 100) = 42 (4.184) (52.1 - 20)
Cm = 1.717 -----> OPTION C
Answer:
A is your answer
Step-by-step explanation: