The rate at which the sound travels in km/hr is 0.142km/hr
<h3>Conversion of m/s to km/hr</h3>
If a sound wave travels with a speed of 5120m/s, in order to convert to km/he, we will use the conversion factor below;
1hr = 3600secs
1km = 1000m
Using the conversion factor in our dimensional analysis
5120m/s = 5120m/1s * 1km/1000m * 3600s/1hr
5120m/s = 5120m/3600000
5120m/s = 0.142km/hr
Hence the rate at which the sound travels in km/hr is 0.142km/hr
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Answer:
9x+7y+13
Step-by-step explanation:
5x+4x=9x
3y+3y+y=7y
5+8=13
It wouldn't play or else i would help
Answer:
14
Step-by-step explanation:
you can do this two ways:
<u>First: </u>
<u>Second: </u>
Distribute the 3 first
You can find an equivalent expression for this by combining like terms.
The terms are 88, 16x, and 8.
The like terms are 88 and 8.
To combine them, add them together.
88 + 8 = 96
The equivalent expression would be 16x + 96.
This means 16x + 96 is the same as <span>88 + 16x + 8.
Since they are equivalent, that means they are equal, or the same.
So no matter what x is, they will both be equal to the same thing, so their solutions will be the same.
Answers:
Equivalent Expression: 16x + 96
Yes, both expressions will have the same solutions if x = 4.
Hope this helps!</span>
