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:
55%
Step-by-step explanation:
11/20 = 0.55
0.55 = 55%
Answer:
Is there supposed to be a graph somewhere?
Answer: hello your question is vague hence i will provide a more general answer
Area of a right angled triangle = 1/2 * b * h
Step-by-step explanation:
For a right- angled triangle; the sum of squares of the opposite and adjacent sides = square of the longest side ( i.e. hypothenuse )
hence the Area of a right angled triangle = 1/2 * b * h
where : b = adjacent , h = opposite side
Answer:
Step-by-step explanation:
Answer:
The greatest of the integers is 129 (C).
Step-by-step explanation:
Let x be the first integer.
x + (x + 2) = 256
2x + 2 = 256
2x = 254
x = 127
127 + 129 = 256
