Question

PLEASE ANSWER MY QUESTIONS ABOVE ​

Answer 1

Step-by-step explanation:

conceptual answers are present above I will answer with out using formula

Here sum of two numbers is x+y=153 and their HCF is 9 it means that the two numbers are multiples of 9 so those two numbers are from (9,18,27,36,45,54,63,72,81,90,99,108,117,126,135,144)

And also we have LCM is 630 which means 630 is divisible both the numbers x and y.(from here one guess that 630 is divisible by 90*7 and 63*10 also 90+63=153)

As LCM is 630 at least one number has 5 as prime factor. (45,90,135)

so chances are

45+108

90+63

135+27

and 630 is not divisible by 108,27 but divisible by 63 .

x=90,y=63