Answer:
ince the sum of the numbers is 120, we can say that:
3n+7n=120
10n=120
n=12
Now that we have established this, we can just go back and substitute the value of n into 3n:
3n = 3*12
= 36
Therefore, the smaller number is 36. This can also be double checked by finding the value of the other number and seeing if it adds up to 120.
7n = 7*12
= 84
84+36 = 120
This way, we have double checked our answer to ensure it is correct.
I hope this helped, and I also hope you are able to apply this to similar problems!
Step-by-step explanation:
yes
