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:
x = -1 y = 3 and z =2
Step-by-step explanation:
that is the solution above
Answer:
15 1/2 or 15.5
Step-by-step explanation:
the median is just the numer in the middle (numerical order) so, because you end up with both 15 and 16, the rational number between them is 15.5
Answer: 3
Step-by-step explanation:
3x2 = 6
6+8=14
Switch 3/5 and x. then you will get -9-3/5=2x then solve it. then you will get -9.6=2x and the divide -9.6 by 2 and the answer is -4.8=x
