Question

The sum of two numbers is 72.One number is twice the other. What are the numbers?

given information:
what is asked?
operation(s) to be used:
solution:
answer:​

Answer 1

Answer:

Assume X + Y = 72

Y is 2 times X, so Y = 2X

Substituting 2X for Y in the first equation gives you:

X + 2X = 72, which can be simplified to 3X = 72

So, X must be equal to 72/3 which is 24. So the first number is 24, and plugging that into the first equation as X, gives you Y.

X + Y = 72

24 + Y = 72

Y = 48

So your two numbers are 24 and 48.