Answer:
1.75n
For each visit it costs 1.75, so n visits would be the product of the two.
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
The opposite of 5/2 is -5/2 which is -2 1/2 and the opposite of -1/2 is 1/2.
100000+200000=300000
28x=300000
X=10714
They would need to make $10714 a night
Answer: 120 ft per 20 seconds
Step-by-step explanation:
Remember Im not always correct...
Answer:
612 Hz.
Step-by-step explanation:
The frequency of the sound will be proportionally higher when coming towards you. The increase is related to the speed of the train.
So the frequency will be:
580 + (580 / 343) * 18.8
= 612 Hz.
This is called the Doppler effect.