Janiah is solving the system using elimination. Her first step is shown. What should be her next step
2 answers:
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Answer:
18432 km/h
Step-by-step explanation:
It is given that a sound wave travels through iron at a rate of 5120 m/s.
We know that
1 km = 1000 m
1 hour = 60 minutes
1 minutes = 60 second
Using these conversions we get
1 m = 0.001 km
1 hour = 3600 second
Therefore, the sound wave travels through iron at a rate of 18432 km/h.
Answer:
C
Step-by-step explanation:
Since we are dealing with recursive equations, we can use a simple format.
x is the starting value and y is the change.
We can see that the change is -5.6 since 5.6 is being subtracted from each term each time.
So the equation would be
We can check this by plugging in the numbers.
Let's see if -8.3 works, which is the 2nd term in the equation.
Therefore, the recursive rule is the third one.