A teacher’s salary was $3300 after she had received an increase of 10%. Calculate the teacher’s sala

Discussion in 'Calculator Requests' started by math_celebrity, Oct 11, 2020.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    A teacher’s salary was $3300 after she had received an increase of 10%. Calculate the teacher’s salary if she has received an increase of 20% instead.

    First, we need to find the starting salary. Let the starting salary be s. Since 10% as a decimal is 0.10, We're given:
    s*(1.10) = 3300
    1.10s = 3300

    To solve for s, we type this equation into our search engine and we get:
    s = 3000

    The problem asks for the new salary if the teacher's starting salary was increased by 20%. 20% as a decimal is 0.20, so we have:
    3000(1.2) = $3,600
     

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