Answer:
Step-by-step explanation:
Given
Now we know that system has infinite solution for x
in above equation.
∴
2. M is the midpoint of AB. N is the midpoint of AM. Find the coordinates of point M and point B. Y B N(-10.5, 3.25) A(-20, 1) M
3. Write the following recurring decimals in dot notation Answer: M (........., B (........., .) [1m] .) [1m] 2. M is the midpoint of AB . N is the midpoint of AM . Find the coordinates of point M and point B. Y B N ( -10.5 , 3.25 ) A ( -20 , 1 ) M 3. Write the following recurring decimals in dot notation Answer : M ( ......... , B ( ......... , . ) [ 1m ] . ) [ 1m ]
1 answer:
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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.