Answer:
Step-by-step explanation:
ignore the "at the instant the man is 30 feet away" part, set it as X and the man's shadow as Y.
Similar triangles so we can do 
.
Solve for it we get 44y = 6x
Differentiate relative to time t, we get 44y' = 6x'.
change in x (x') is equal to 5. And we get the answer y' = 
.
the ft/sec is the rate of which the length of the shadow is changing. add 5 to it for the rate of the tip of his shadow moving away from the tower.
Answer:
15
Step-by-step explanation:
Let's solve your equation step-by-step.
15+8x=45+6x
Step 1: Simplify both sides of the equation.
8x+15=6x+45
Step 2: Subtract 6x from both sides.
8x+15−6x=6x+45−6x
2x+15=45
Step 3: Subtract 15 from both sides.
2x+15−15=45−15
2x=30
Step 4: Divide both sides by 2.
2x
2
=
30
2
x=15
Answer:
x=15
Answer:
If you are asking about the difference between the two, the difference is $5,805.80
Step-by-step explanation:
Answer:
<u><em>x=11</em></u>
Step-by-step explanation:
-31+4x=-2x+35
+31
4x=-2x+66
+2x
6x=66
66/6
Answer:
45/8
Step-by-step explanation:
