<h3>
Answer: 15 years old</h3>
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Explanation:
m = Maggie's age (some positive whole number)
4m = four times her age
4m-7 = seven years younger than 4m = brother's age
Add up her age (m) and her brother's age (4m-7) to get a sum of 68.
m+(4m-7) = 68
5m-7 = 68
5m = 68+7
5m = 75
m = 75/5
m = 15
Maggie is currently 15 years old.
Her brother is currently 4m-7 = 4*15-7 = 60-7 = 53 years old.
Their current year ages add to: 15+53 = 68 which confirms the answer.
Answer: 0.66666666666
Step-by-step explanation: just a calculator ez
Answer:
Option D is the correct answer.
Step-by-step explanation:
Room Occupancy Percentage:
- It is defined as the ratio of total number of rooms occupied to the total number of rooms available.
- Formula:

Thus, the correct answer is:
Option D)
Total rooms occupied divided by total available rooms
For this case we have the following system of equations:

We multiply the first equation by -5:

Thus, we have the equivalent system:

We add the equations:

We find the value of the variable "x":

Thus, the solution of the system is:

Answer:
