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Jerry started doing sit-ups every day. The first day he did 19 sit-ups. Every day after that he did 2 more sit-ups than he had done the previous day. Today Jerry did 41 sit-ups. Write an equation that could be solved to find the number of days Jerry has been doing sit-ups, not counting the first day. Let n represent the number of days.

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absor201

The equation to find number of days is: 19+2n=41

Step-by-step explanation:

A linear equation is an equation in which the power of variable is only 1.

Let n represent the number of days

Then

Sit-ups on first day = 19

Sit-ups each day = 2

Total Sit-ups today = 41

The equation will be:

19+2n=41

2n because Jerry adds two sit-ups each day and 19 will be separate as it is required not to count that.

Hence,

The equation to find number of days is: 19+2n=41

Solving the equation:

[tex]19+2n=41\\Subtracting\ 19\ from\ both\ sides\\19-19+2n=41-19\\2n=22\\Dividing\ by\ 2\ on\ both\ sides\\\frac{2n}{2}=\frac{22}{2}\\n=11[/tex]

The number of days are: 11

Keywords: Linear Equation, Solution of linear equation in one variable

Learn more about linear equations at:

  • brainly.com/question/3375830
  • brainly.com/question/3398261

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