Aleatoric music is music that has melodies that are based on the roll of dice or a random set of numbers.
If the current in a stream moves at a rate of 7 mph. If a boat travels 98 miles downstream in the same time that it takes to travel 49 miles upstream then the speed of the boat in still water is 21 miles per hour.
<h3>What is speed?</h3>
Speed is the distance covered by an object in a certain time period. It is also known as velocity. The formula of speed is as follows:
Speed=Distance/ Time.
<h3>How to calculate speed?</h3>
We have been given that the speed of stream is 7miles per hour.
Let v be the speed of the boat, and t the time to travel
98=t*(7+v) (1)
49=t(v-7) (2)
(1)+(2) => 2tv=147
7t+(49+7t)=98
14t+49=98
14t=49
t=49/14
t=7/2
Put the value of t in equation 1 to get the value of v:
98=t(7+v)
98=7/2(7+v)
196/7=7+v
28=7+v
v=28-7
v=21
Hence if the current in a stream moves at a rate of 7 mph. If a boat travels 98 miles downstream in the same time that it takes to travel 49 miles upstream then the speed of the boat in still water is 21 miles per hour.
Learn more about speed at brainly.com/question/4931057
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450 seconds I got this by multiplying
The easiest way to figure this out is by first subtracting 700 from 750 to make sure we don't get confused. Now that you have 50 dollars left what would be best to do would be divide the 50 (because you have 50 dollars left) by the amount per mile (.15). That should be 333.33333333. Rounded it would be 333 miles.
Answer:
1450
Step-by-step explanation:
23*63= 1449
1449 yo the nearest 10 = 1350
