<u>
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Step-by-step explanation:
-x, -(x+1)
-x-(x+1)=10506
x^2+x-10506=0
He has 87 cards then he gets 9 more which is 96, he then gives 16 away which is 80, then he is given 3 which is 83 he sells all 83 cards to the collector & the collector gives him $124.50 each card is worth $1.50
Answer:
Step-by-step explanation:
Remark
You need the work done (I think), and the power developed from the givens. This question is just a straight forward application of the formulas for work and power.
Givens
F = 100 N
d = 5 meters
t = 15 seconds
Formulas
W = F * d
Power = F * d / t
Solution
<u><em>Work</em></u>
W = 100 N * 5 meters
W = 500 Newton Meters or 500 J
Work = 500 Joules
<u><em>Power</em></u>
P = F * d / t
Power = 100 * 5 / 15
Power = 33.3 Watts.
