Answer: The age of the twins is 10 years.
Step-by-step explanation:
Suppose the age of older sister be x
Let the age of twins sister be x-9, as they are born after 9 years.
Product of their ages be
Sum of their ages will be
According to question,
So, Age of older sister will be 19 years.
Age of the twins will be
Hence, the age of the twins is 10 years.
Answer:
This system has no solution
Step-by-step explanation:
-(11+4y)+4y=-10
no solution
Answer:
-5x^2-32x+13
Step-by-step explanation:
(3-13x-7x)-(5x^2+12x-10)
3-20x-5x^2-12x+10
-5x^2-32x+13
Answer:
A. 78,5 in
Step-by-step explanation:
Formula for circumference of the circle is π × diameter.
<h2>:- Question</h2>
Find the circumeference of the circle!
<h2>:- Solution</h2>
Circumeference = π × diameter
= 3,14 × 25 in
= 78,5 in
The circumeference of the circle is 78,5 in
_______________________
Answer:
V=7982.4 in
Step-by-step explanation:
V=4/3pi*r^3
V=4/3pi*12.4^3
V=4/3pi*1906.62
V=7626.48/3pi
V=2542.16pi
V=2542.16*3.14
V=7982.4
