Question

issac is 5 years older than trevon. the ratio of issac's age to trevon's age is 4 : 3. how old is trevon?

Answer 1

Trevon is 15

Explanation:

If Issac is 5 years older than Trevon, and the ratio is 4:3, then we can multiply one or both of them to be compared by.

If Issac is 10, for example, then Trevon would be 5, giving a 2:1 ratio

When we multiply the ratio, we eventually see a point where Issac's (first number) age is 5 more than Trevon's (second number) age:

( 4:3 ) 3 = 12:9
( 4:3 ) 4 = 16:12
( 4:3 ) 5 = 20:15

Issac is 20 and Trevon is 15

There's probably an easier way to solve problems like these but this was what came to mind at first hope this helps

Answer 2

Trevon is 15

Explanation:

let Trevon's age be x then Issac is x + 5

the ratio of Issac : Trevon = 4 : 3

set up a proportional equation

`(Issac)/(Trevon)` , that is

`(x+5)/(x)` =
`(4)/(3)` ( cross- multiply )

4x = 3(x + 5)

4x = 3x + 15 ( subtract 3x from both sides )

x = 15

So Trevon is 15 and Issac is x + 5 = 15 + 5 = 20