SOLUTION: One number is 8 times another number. It is also 15 more than 3 three times the other number. Find the numbers and show all work. What do I do?

Question 555221: One number is 8 times another number. It is also 15 more than 3 three times the other number. Find the numbers and show all work.
What do I do?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Here's what you do!
:
let x = "one number"
let y = "another number
:
You write an equation for each statement:
:
"One number is 8 times another number."
x = 8y
:
"It is also 15 more than 3 three times the other number."
x = 3y + 15
:
From the 1st statement, we know that x=8y, so replace x with 8y in the 2nd eq
8y = 3y + 15
8y - 3y = 15
5y = 15
y = 15/5
y = 3
:
I'm going to leave something for you to do.
You can find x using the 1st equation (x=8y), then check both solutions in the 2nd statement
:
How did you do on this? c

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