Answer:
speed=d/t
let him cover x distance while walking
running d=4.5-x
s1=x/0.5 km/hr....(1)
s2=4.5-x//5/12.....(2)
atq.....s2=2+s1
s1=2x
s2=54-12x/5
by eqn 1 and 2
s1+s2=2x+54-12x/5
putting value of s2
s1+2+s1=2x+54-12x/5....taking LCM =5
10s1+10= 10x+54-12x
as s1=2x
10s1+10= -2x+54
10s1+10=-s1+54
11s1=44
speed when walking=4km/hr
Answer:
0-9 = 4
10-19 = 3
20-29 = 9
30-39 = 5
Step-by-step explanation:
Answer:
The answer is C. Annie didn't make a mistake.
Step-by-step explanation:
To get k, we subtract 7.5 from both sides of the equation.
10 - 7.5 equals 2.5.
So, Annie is correct.
#teamtrees #WAP (Water And Plant)
Answer:
A = A
F = B
I don't know of the others
Step-by-step explanation:
