A) Divide total miles by total time:
21 miles / 4 hours = 5.25 miles per hour.
B) Divide miles by miles per hour:
42 miles / 5.25 miles per hour = 8 hours.
Answer: OPTION C.
Step-by-step explanation:
In order to solve the given exercise, you can follow these steps:
1. Given the following function f(x):
You must substitute 
into the function f(x). Then:
2. Evaluating, you get:
3. Now, the next step is to substitute 
into the function g(x):
4. Finally, evaluating, you get the following result:
You can identify that it matches with the Option C.
Answer:
9 to the 7th power
Step-by-step explanation:
5x + 2y = 7....multiply by -3
-2x + 6y = 9
----------------
-15x - 6y = -21 (result of multiplying by -3)
-2x + 6y = 9
---------------add
-17x = - 12
x = 12/17 or 0.7
5x + 2y = 7
5(12/17) + 2y = 7
60/17 + 2y = 7
2y = 7 - 60/17
2y = 119/17 - 60/17
2y = 59/17
y = 59/17 * 1/2
y = 59/34 or 1.7 when rounded <====
Answer:
Area = 45 km
Step-by-step explanation:
The area of a parallelogram = base * height
It is given that:
Base = 6 km
Height = 9 km
When these values are substituted into the are equation, the result is:
Area = 6 * 9
Area = 45 km
Hope this helps :)
