Step-by-step explanation:
this is the answer key for that question and etc...
Answer:
Step-by-step explanation: The remainder is 200
Answer:
18 4/5
Step-by-step explanation:
that is the answer
Answer:
c = 20
Step-by-step explanation:
lets express the word sentence as mathematical equations:
"1/4 of a number c" can be written---> (1/4) x c = c/4
"5 is 1/4 of a number c" can be written ---> 5 = c/4
solving the equation for c
5 = c/4 (multiply both sides by 4 and rearranging)
c = 5 x 4
c = 20
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