anonymous
  • anonymous
Use the three steps to solve the problem. The sum of 3 consecutive integral numbers is 117. Find the numbers.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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zepdrix
  • zepdrix
"Use the three steps to solve the problem." What 3 steps do they want you to use? c:
anonymous
  • anonymous
Step 1: Let x = small number. Then from the first sentence, 4x = large number. Step 1 is complete as the two quantities to be found are assigned variables. Step 2: The second sentence states conditions placed on the quantities: "their sum is 45." So, x + 4x = 45. Step 3: Solve x + 4x = 45. 5x = 45 x = 9(small number) 4x = 36(large number) The solution set to this number problem is {9, 36}.
zepdrix
  • zepdrix
Oh, so algebraically :) with x n stuff. Hmm ok.

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anonymous
  • anonymous
ya lol
zepdrix
  • zepdrix
So if we let the smallest of the 3 numbers be X, SINCE they are consecutive (one number right after the next), We can write the number AFTER X as (X+1) and the number after that as (X+2) Does that part make sense? :)
anonymous
  • anonymous
kinda :P
zepdrix
  • zepdrix
if x = 20 20+1= x + 1 Which is the next number in the sequence :D we're doing that type of thing.
zepdrix
  • zepdrix
uh oh kaite still confused? c: These x's messin with yer head? :D
anonymous
  • anonymous
:D it sure is i hate math
zepdrix
  • zepdrix
aw :c maf is awesome
anonymous
  • anonymous
not to me :(
zepdrix
  • zepdrix
Step 2, hmm so we recognize the conditions placed on our quantities. "the sum is 117". So if X= a number. (let's say ummm 37 how bout.) Then we can write 38 (the next number after 37) 37+1 = x+1 And we can write 39 (the number after 38) 37+2 = x+2 So the sum of our 3 numbers will be, 37+38+39=117 37 + (37+1) + (37+2) = 117 x + (x+1) + (x+2) = 117 Add up the x's 3x + 3 = 117 Then solve for x! Normally you wouldn't know that 37 38 and 39 are your numbers ahead of time. But I'm trying to keep it simple so you can maybe grasp this concept <:o
anonymous
  • anonymous
okay :)
anonymous
  • anonymous
actually that only equals 114 so would't it be 38 39 40
anonymous
  • anonymous
@zepdrix
zepdrix
  • zepdrix
Oh appearantly it was 38, 39 and 40! ah sorry bout that! XD
anonymous
  • anonymous
it okay

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