x-2=7
apply additon property of equality
x-2+2=7+2
x=9
Answer:
19.3795 m
Step-by-step explanation:
If sound travels at 343 m/s and it took Karen 0.113 s to hear the echo from the wall, the distance travelled by the sound is:

Note that the distance calculated above is the distance travelled from Karen to the wall and then back from the wall to Karen. Therefore, the distance between Karen and the wall is:

The wall is 19.3795 m away from Karen.
Answer: The probability lies between 0 and 1
Step-by-step explanation:
As from the given information probability of an event lies between 0% to 100% .
To convert percent into integer or fraction we have to divide it by 100

And

From the above the probability of an event lie between integers 0 to 1.
Answer:
The flow rate in dextrous solution is 0.117 litres per hour
Step-by-step explanation:
Given:
The volume of fluid which passes per unit time = 1.17 Litres
Time Period = 10 hour
To Find:
The Flow rate per hour = ?
Solution:
Flow rate is defined as rate at which the "{volume of fluid which passes per unit time"
Here the Flow rate is = 
On substituting the values
The Flow rate is =
The flow rate is 0.117 litres per hour
Thus 0.117 litres of dextrous solution flows per hour.