Answers

  • Brainly User
2016-02-17T09:50:46+08:00
First number: x
second number:  5x (five times the first number)
third number:  2(5x) or 10x (twice the second number)
fourth number:  5x + 20 (20 more than the second number)
Sum of the four numbers = 167

Equation:
 
(x) + (5x) + (10x) + (5x + 20) = 167

21x + 20 = 167

21x = 167 - 20

21x/21 = 147/21

x = 7

Substitute 7 for x:

First number: 7
Second number: 5(7) = 35
Third number: 10 (7) = 70
Fourth number:  5(7) + 20 = 55

ANSWER:  The numbers are 7, 35, 70 and 55.

Check:
   7 + 35 + 70 + 55 = 167
   167 = 167              (True)


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