Answer:
1 hour and 42.85 minutes.
Step-by-step explanation:
It is found from the process of reviewing that experience survey a roadbed in 3 hours.
Hence, in 1 hour the experience survey 
of the roadbed.
Again, it is found that the apprentice survey needs 4 hours to survey the same stretch of road.
So, in 1 hour the apprentice survey does 
of the roadbed survey.
If they work together then in 1 hour, the survey work will be done by (
)= 
parts.
Therefore, the total survey they will complete working together in 
hours i.e. 1 hour and 42.85 minutes. (Answer)
Answer: 80
Step-by-step explanation:
A) The first domino is 3, the second is 4. Hence 34.
B) The first domino is 5, the second is 1. Hence 51.
C) The first domino is 6, the second is 11. Hence 71.
D) The first domino is 7, the second is 10. Hence 80.
Smaller x = -2/5
Larger x = 5
Answer:
the number of children has red or brown hair is 
.
Step-by-step explanation:
We have been given that in Marci's family there are total 6 children.
Out of 6 children
Number of children have blonde hair =
Number of children have red hair = 
Number of children have brown hair = 
Since, we have to find the fraction of children has red or brown hair=
Hence, the number of children has red or brown hair is
