Question

Melvin is X years old . Jonathan is 5 years older than Melvin. their total age 10 year later is 85 years .Find the value of X​

Answer 1

30 years

Explanation:

Age of melvin = X

Age of Jonathon = X + 5

After 10 years,

Age of melvin = X + 10

Age of Jonathon = X + 15

Now,

According to the question,

`x +10 + x + 15 = 85`

Collect like terms

`2x +10 + 15 = 85`

Calculate the sum

`2x + 25 = 85`

Subtract 25 on both sides

`2x + 25 - 25 = 85 - 25`

Calculate

`2x = 60`

Divide both sides of equation by 2

`(2x)/(2) = (60)/(2)`

Calculate

`x = 30`

Hope this helps...

Good luck on your assignment..

Answer 2

X= 40

Explanation:

X ×2+5= Jonathan age.

So, 85÷2-5 = X

X= 85÷2-5

=40