Given:
Teddy has two sisters. One of them is 3 years younger than Teddy, the other one is 7 years younger than her only brother.
To find:
The age of older sister at the time when the younger sister was born.
Solution:
Let the age of Teddy be x.
One sister is 3 years younger than Teddy.
Age of one sister = x-3 years
The other one is 7 years younger than her only brother. It means other sister is 7 years younger than Teddy.
Age of other sister = x-7 years
Clearly (x-3) > (x-7). So, difference between the ages of sisters is
Therefore, the age of older sister is 4 years when the younger sister was born.
Answer:
7m and 17m
Step-by-step explanation:
The length would be between 7m and 17m. This is because since the sum of two sides of a triangle must be greater than the third side. The sum of the third side and 6 must give us something greater than 12. This means the least the length can be is 7m. Since 6+12=18, the third side also has to be less than 18. This means the greatest the length can be is 17m.
Answer:
The answer to your question is the letter D.
Step-by-step explanation:
Data
First rectangle Second rectangle
length = 3 length = 3
width = 2 width = 2 + 4 = 6
Process
1.- Calculate the Perimeter of the first rectangle
Perimeter = 2l + 2w
Perimeter = 2(3) + 2(2)
= 6 + 4
= 10
2.- Calculate the perimeter of the second rectangle
Perimeter = 2(3) + 2(6)
Perimeter = 6 + 12
Perimeter = 18
3.- Compare both perimeters
Perimeter 1 is smaller than Perimeter 2 by 8 units
L = rc
where c = angle in radians , r = radius and l = length of the arc
so
5.4 = 6 r
r = 0.9 radians
and this equals the angle at the center.
0.9
In five years the car will be worth $9,472.90
