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

Answer:

X= 40

Step-by-step explanation:

X ×2+5= Jonathan age.

So, 85÷2-5 = X

X= 85÷2-5

=40

Answer 2

Answer:

30 years

Step-by-step 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

$\frac{2x}{2} = \frac{60}{2}$

Calculate

$x = 30$

Hope this helps...

Good luck on your assignment..