Answer:
The question would've given you to what number you should round up your answer.
Answer is:
Whole number:
63%
1 decimal place:
63.3%
2 decimal places:
63.33%
Exact number:
%
Step-by-step explanation:
So the starting no. = 30
Ending no. = 11
In order to evaluate the percentage of decrease we:
(Ending number/starting number) * 100
So:
%
To find the Decrease percentage:
100 % - 110/3 %
= 63.333%
Let wind speed = x mph
when she rode 2 miles against the wind we have:-
speed = distance / time so
20 - x = 2 / t -------(1) where t is the time she took.
when riding with the wind we have
20 + x = 3 / t--------(2) adding equations (1) and (2):-
40 = 2/t + 3/t
40 = 5/t
t = 5/40 = 1/8 hr
x = 20 - 2 / 1/8 = 20 - 16 = 4
Wind speed was 4 mph Answer
Answer:
-27.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
y = 2x + 2
x =
y =
(x) =
The whole problem is in the second sentence. The first sentence is interesting,
but it has nothing to do with the actual math question.
The area of a circle is (pi) (radius)² .
The area of a circle with 50-mile radius is (pi) (50)² = 2,500 pi = 7,854 square miles
That's (7,854) / (586,412) = 0.0134 = <u>1.34%</u> of Alaska's total area.