140296.11541307 written as a fraction
1 answer:
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Answer: 20 mph
Explanation:
Speed is a physical quantity which is equal to the ratio between the distance covered (d) and the time taken (t):
In the first part of the problem, the plane flew a distance of d=400 mi in a time of t=2.5 h. The speed of the plane in this case was the difference between the proper speed of the plane, v, and the speed of the wind, w, since the plane flew opposite to the wind. So we can write:
(1)
During the return trip, the plane flew with a speed (v+w), since the wind was on the tail, and it took 2 hours to cover the same distance:
(2)
So we have two equations with two unknown variables. From (1), we get
Substituting into eq.(2)
So, the speed of the wind was 20 mph.
Answer:
L'(4, -4)
Step-by-step explanation:
When you're given a midpoint, you can find the point equidistant on the other side of the midpoint by subtracting the relevant coordinate from <em>double that of the midpoint</em>.
Here, the line of reflection is the horizontal line y=-1, so you know only the y-coordinate will change. The reflected point will be ...
(x, y) ⇒ (x, -2-y)
so the point of interest is ...
L' = (4, -2-2) = (4, -4)
Answer:
I am saving 16.67% when I buy 3 towels together.
Step-by-step explanation:
Beach towels are currently selling 3 for $25 or $10 each.
So, if I purchase 3 towels then I have to pay $25 in place of (3 × 10) = $30.
So, $(30 - 25) = 5 Dollars is saved by me on a price value of $30.
Therefore, the percentage of savings is calculated as %.
Therefore, I am saving 16.67% when I buy 3 towels together. (Answer)