SOLUTION: One number is four more than a second number. Three times the first is less than 5 times the second. Find the numbers.

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Question 278114: One number is four more than a second number. Three times the first is less than 5 times the second. Find the numbers.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x=y+4
3x<5y
3(y+4)<5y
3y+12<5y
3y-5y<-12
-2y<-12
y>-12/-2 [ note the sign change when dividing by a negative value.
y>6 ans.
x=6+4
x=10
Proof:
Let y=6.1
3*10<5*6.1
30<30.5