Distance=speed times time
distance/time=speed
distance=30km
time=2.5hr
distance/time=30km/2.5hr=60km/5hr=12km/1hr=12km/hr
her speed is 12km per hour
Answer:
-15 2/3.
Step-by-step explanation: First off, I performed the equation -4 5/1 - 6 4/6, yielding -15.6. I then translated that to a fraction. How to do that, you ask?
Example #1
Convert 0.32 to fraction:
0.32 = 32/100
Find the greatest common divisor (gcd) of the numerator and the denominator:
gcd(32,100) = 4
Reduce the fraction by dividing the numerator and the denominator with the gcd:
0.32 = (32/4) / (100/4) = 8/25
Example #2
Convert 2.56 to fraction:
2.56 = 2+56/100
Find the greatest common divisor (gcd) of the numerator and the denominator:
gcd(56,100) = 4
Reduce the fraction by dividing the numerator and the denominator with the gcd:
2+56/100 = 2 + (56/4) / (100/4) = 2+14/25
In your problem the final answer would result in -15 2/3. Hope this answered your question.
1. This answer would be C, n^3 + 5
2. This answer would be D, n^3 + 9
3. This answer would be A, 4n - 11
Answer:
The answer to this question can be defined as follows:
Step-by-step explanation:
Given equation:

Using formula:
Solving the given equation:

compare the value form the given formula:

Correct equation 
solpe 