Nina is 10 years younger than deepak. deepak is 3 times as old as nina. which system of equations can be used to find d, deepak's age, and n, nina's age?

a) d = n + 10 d = 3n
b) d = n − 10 d = 3n
c) d = n + 10 n = 3d
d) d = n − 10 n = 3d

The first thing we must do for this case is to define variables.

We have then:

n: Age of Nina

d: Age of Deepak

We now write the system of equations that models the problem.

Nina is 10 years younger than Deepak:

Deepak is 3 times as old as Nina:

Therefore, the system of equations is given by:

A system of equations that are used to find d, Deepak's age, and n, Nina's age is:

A) d = n + 10; d = 3n

its b

step-by-step explanation:

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus