X = original cost
Y = Marked down cost
0.85x = y
Here's why:
When multiplying by percentages, what you multiply by is what is left over so 0.15x is incorrect because that would mean you marked it down by 85%!
Answer:
3.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001
Step-by-step explanation:
Cuz both number lines have 3.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000......................1 as a number that's valid
Answer:
Step-by-step explanation:
The change of distance over time of the plain A is 300 mi/hour and 200 mi/hour for plane B. O is the point of the airport.
So, the distance from A to O AO = 90 miles and BO = 120 miles.
Now, we have a right triangle here. We can use the Pythagorean theorem, so the distance between the planes will be:
(1)
If we take the derivative of the equation (1) we could find the change of the distance between planes.
Finally,
I hope it helps you!
5 would be your x coordinate because remember coordinates are written in (x,y)
Second one. Not enough English knowledge to explain sorry.