Using a system of equations, it is found that Ajay is 25 years old today.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are:
Wale was twice as old as Ajay 10 years back, hence:



Wale will be 40 years old in 10 years, hence:


Then, Ajay's present age is found as follows.




You can learn more about system of equations at brainly.com/question/14183076
Answer:
Step-by-step explanation:
Volume of a cylinder = pi*(xx)^2*yy
= x^4*pi*yy
Volume of a cone = 1/3*pi*(9x^2)^2*h
= 27pi*x^4*h
x^4*pi*y^2 = 27pi*x^4*h
h = y^2 / 27
Answer:
Domain is (-infinity,infinity)
Range is (-infinity,3)
The determinat of
| a b |
| |
|c d |
is: a*d - b*c
So the determinant of:
|3 -5 |
| |
|1 1 |
is 3 * 1 - 1 * (-5) = 3 + 5 = 8
Answer: option D. 8