Answer:
12.8mph
Step-by-step explanation:
Let 'w' represent her walking speed
->if her jogging speed is 8mph faster than her walking speed
Jogging speed= w+8
Using the time equation i.e time = dist/speed
For walking when distance is 8miles
time = dist / speed= 8/w hrs
For jogging when distance is 13miles
time = dist / speed= 13/(w+8) hrs
Equating the time
jog time = walk time
13/(w+8) = 8/w
By cross multiplying it
13w = 8w + 64
5w = 64
w=64/5
w=12.8mph
Therefore, 12.8mph is her walking speed.
Answer: x = 20
Step-by-step explanation:
Right angle = 90
90 - 47 = 43
43 - 3 = 40
40/2 = 20
Answer:
I did it and is 36
Step-by-step explanation:
Answer:
6 + 3
+ 2
+ 
Step-by-step explanation:
Using the rule of radicals
× 
⇔ 
Given
(3 + )(2 + )
Each term in the second factor is multiplied by each term in the first factor, that is
3(2 + ) + (2 + ) ← distribute both parenthesis
= 6 + 3 + 2 +
Answer:
18
Step-by-step explanation:
Points A B C D and E are collinear.
