SOLUTION: 2nd # is 7 times the first #. third number is 100 more than the first #. If the sum of the three numbers is 442, find the numbers. please show me HOW you get the answer as well a

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: 2nd # is 7 times the first #. third number is 100 more than the first #. If the sum of the three numbers is 442, find the numbers. please show me HOW you get the answer as well a      Log On

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Question 645408: 2nd # is 7 times the first #. third number is 100 more than the first #. If the sum of the three numbers is 442, find the numbers.
please show me HOW you get the answer as well as the answer.
thank you
Found 2 solutions by sachi, MathTherapy:
Answer by sachi(548) About Me  (Show Source):
You can put this solution on YOUR website!
let the 2nd no is x
than 1st=7x
& 3rd=x+100
so x+7x+x+100=442
or 9x=442-100=342
or x=38
so the nos are 38,266,138
ans

Answer by MathTherapy(10809) About Me  (Show Source):
You can put this solution on YOUR website!

2nd # is 7 times the first #. third number is 100 more than the first #. If the sum of the three numbers is 442, find the numbers.
please show me HOW you get the answer as well as the answer.
thank you

Let 1st number be F
Then 2nd = 7F, and 3rd = F + 100
Therefore, F + 7F + F + 100 = 442
9F = 442 – 100
9F = 342
F, or 1st number = 342%2F9, or highlight_green%2838%29

2nd number = 7(38), or highlight_green%28266%29

3rd number = 38 + 100, or highlight_green%28138%29

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