Answer:
Step-by-step explanation:
7x + (2x+27)=180-> 9x= 180-27 -> x=17
45 degrees is the answer to your problem
It would be 3:40 since 1 hour and the 40 minutes add up and the choir is after the meeting
Answer:
12
Step-by-step explanation:
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
learn more on dimensional analysis here: brainly.com/question/21510595
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