Answer:
speed in still water is v=40 speed of current
Thus, the required equation is given by Y = 5/2X.
Given data can tabulate is
Days overdue(x) = 0 2 4 6 8 10
Amount of fine(y) = 0 5 10 15 20 25
<h3>What is equation?</h3>
equation is the relationship between variable and represented as is example of polynomial equation.
Since, the as for every value of x, y grows linerely.
Equation can be given as for every 2 step of x, y increase 5 steps
therefore, y = 5/2x
Thus, The required equation is given by y = 5/2x
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3x^2 - 7x + 12 = 0...move the 12 to the other side
3x^2 - 7x = -12....now divide by 3
x^2 - 7/3x = -4..this is where he made his mistake
Y=-2
You combine like terms which would be -14 and 22. 22-14=8. Then you subtract that from 0. 0-8=-8. Then divide -8 by 4y. -8÷4=-2