Answer:
9
Step-by-step explanation:
57 + 32x equals 435 - 10x
42 x equals 378
x equals 9
The function based on the information will be S = -0.005D + 95.
<h3>How to illustrate the function?</h3>
It should be noted that d is the distance from the starting point while S is the speed.
The points given are (0 95)( 4000, 75).
Slope = (75 - 95)(4000 - 0)
= 0.005
The equation will be:
S = -0.005D + 95
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Since the lines are parallel their slopes are equal. So, the equation is y=4x+b
Now we need to find the y-intercept, which is b.
Now, Plug in point p to find b:
3=4*(-1)+b
b=3+4=7
The equation is: y=4x+7
