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26 June, 08:53

James has $360 in his savings account. If he decides to save $90 every month, which of these best describes how many months it will take for him to have more than 810 in his savings account?

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  1. 26 June, 12:43
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    This problem can be easily solved using algebra.

    Since James wants to know how many months he will have $810, we need to simplify it in an equation.

    Let x = number of months

    $360 + $90x = $810

    We transfer $360 to the other side and reverse operation

    $90x = $810 - $360

    Now it is simplified to this

    $90x = $450

    n order to find the value of x, we divide 90 to both sides

    $90x/90 = $450/90

    ... and arrive at the answer.

    X = 5

    Therefore, it will take 5 months for James to save in order to get $810 in his bank account.
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