A = 6.7 :) hope this helps I double checked
Step-by-step explanation:
1) 7/23 + 11/23 + 9/23
7+11+9/23
27/23
= 1 4/23
2) 2 5/7 + 9 4/7
11 9/7
= 11.12
3) 9/20 + 3/5
9+12/20
21/20
= 1 1/20 or 1.05
Let the width be x
The length would be 2x-5
So, 2(x+2x-5)=80
3x-5=40
3x=45
x=15.
So the width is 15 and the length would be 25.
Answer:
it take 1/7 km in 1 hour then,
1 km it take 7 hours
so, it cover 5 km in 35 hours
1/7 km ------- 1 hour
1km ------- 7 hour
5km -------( 5*7) == 35 hours
The answer isw c because when i first looked at it i was like its a then i soveled the problem out