Answer:
Each shows two lines that make up a system of equations. If the graphs of the equations intersect, then there is one solution that is true for both equations. If the graphs of the equations do not intersect (for example, if they are parallel), then there are no solutions that are true for both equations.
Answer:
<u>Same as the original:</u>
-->A 15% increase followed by a 15% decrease
--> A 25% decrease followed by a 50% increase
-->A 50% decrease followed by a 100% increase
<u>Greater than the Original:</u>
-->A 20% decrease followed by a 25% decrease
<u>Less than the Original:</u>
-->A 75% increase followed by a 50% decrease
Step-by-step explanation:
<em>Example</em><u><em>#1</em></u><em>: I did 15% increase is 15% so followed by a -15%(decrease). The sale stayed the same.</em>
<em>Example</em><u><em>#2:</em></u><em> -20%+25%=5% *greater than the original</em>
<em>Example</em><u><em>#3</em></u><em>: If the percentage came to 0%, it stayed the same(same as original.) </em>
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Hope this helps!!
When the decrease in velocity (the acceleration) is uniform, the average velocity is [Initial velocity - Final velocity]/2
We know tha the initial velocity is 0.96 rev / sec and the final velocity is 0,
Then, the average velocity is [0.96 / 2 ]rev /sec = 0.48 rev/sec.
Also, by defintion,
average velocity = number of rev / time,
From which, number of rev = average velocity * time
So, number of rev = 0.48 rev/sec * 2.4 min * 60sec /min = 69.12 rev
Answer: 69.12 revolutions
