Answer:
Sam: 9, Amy: 13
Step-by-step explanation:
So five years ago, lets say Sam was 4, and Amy was 8. That would be half Amy's age. If we add on 5 to Sams age, as it says, Amy would then be 13, and Sam would be 9. This is also four years apart. Thus, the answers are Sam: 9 and Amy: 13
Let's say that x is sam's age and y is Amy's age
x=y-4
and five years ago:
x-5=(y-5)/2
y-4-5=(y-5)/2
2y-18=y-5
y=13
x=9
then:
sam's age is 9 and Amy's age is 13
2l + 3 = 39
Let l = Lindsay's age in years.
Carol's age is three more than two times Lindsay's age
Carol = 2l+3
Carol = 39
39 = 2l+3
777 is an example of a three digit number that is not divisible by 5
777/5 = 155.4
