Complete The Table Number, List Of Factors , Prime Or Composite , 1.18, 2.20 , 3.31 , 4.79 , 5.95., Pa Help Me Guys

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Complete the table Number List of Factors Prime or Composite 1.18 2.20 3.31 4.79 5.95. pa help me guys>.<nonsense report>.<   Step-by-step explanation: 1. 18= (1,18),(2,9),(3,6) composite 2. 20=(1,20),(2,10),(4,5) composite 3. 31=(1,31) prime 4. 79=(1,79) prime 5. 95=(1,95),(5,19) composite hope it helps!

The Sum Of Two Numbers Is 37. Their Difference Is 13 Fine The Smaller Number

The sum of two numbers is 37. Their difference is 13 fine the smaller number

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 \largenderline{\mathbb{PROBLEM}:}

  • The sum of two numbers is 37. Their difference is 13, find the smaller number.

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 \largenderline{\mathbb{ANSWER}:}

 \qquad \large \:\rm{12 \: is \: the \: smaller \: number}

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 \largenderline{\mathbb{SOLUTION}:}

» Let x and y be the larger and smaller number respectively. Create two equations by the given situations.

  •  \begin{cases} x + y = 37 \\ x - y = 13 \end{cases} \quad \begin{align} \tt{(eq. \: 1)} \\ \tt{(eq. \: 2)} \end{align}

» Find x in the first equation the substitute it to the second equation in terms of y.

  •  \begin{cases} x = 37 - y \\ x - y = 13 \end{cases}

  •  \begin{cases} x = 37 - y \\ 37 - y - y = 13 \end{cases}

  •  \begin{cases} x = 37 - y \\ 37 - 2y = 13 \end{cases}

  •  \begin{cases} x = 37 - y \\ 2y = 37 - 13 \end{cases}

  •  \begin{cases} x = 37 - y \\ 2y = 24 \end{cases}

  •  \begin{cases} x = 37 - y \\ 2y/2 = 24/2 \end{cases}

  •  \begin{cases} x = 37 - y \\ y = 12 \end{cases}

 \therefore The value of y or the smaller number is 12.

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(ノ^_^)ノ


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