Answer:
11 years old
Step-by-step explanation:
If four brothers have the average age 6, then the sum of their ages is
years.
Let x years be the age of sister. If four brothers and their sister have the average age 7, then
Multiply this equation by 5:
The sister is 11 years old.
10,000 Because you need to add 10,000 add its going to give you 20,000
Answer:
0.7 repeating I believe
Step-by-step explanation:
i'm not sure how i got it, but yea
Answer:
3 is the answer
Step-by-step explanation:
add all 6 numbers up then divide by 6
Consider a right triangle in which one of the angles 
satisfies
That is, the side opposite occurs in a ratio of 3 to 5 with the hypotenuse. The side adjacent to then occurs in a ratio of 4 to 5 with the hypotenuse. In other words,
because
Then in this triangle,
