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4 January, 23:07

A Gasoline pump delivers 4 2/5 gallons of gas per minute. How many minutes will it take to fill a gas tank that holds 16 and 1/2 gallons

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  1. 5 January, 02:17
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    First lets put these numbers into improper fractions. 4 2/5 becomes 22/5 becomes we multiple the 4 by the denominator, 5, and add to the dividend.

    We do the same process with 16 1/2 and get 33/2.

    We then need to set these equations so that they have the same base. In these case a common factor is 10.

    We multiple our first equation by 2 and get 44/10, and then we multiple our second equation by 5 and get 165/10.

    We then setup the equation (44/10) * x=165/10

    We can multiple each side out by 10, leaving us 44x=165

    Divide each side by 44, which leaves us with x=165/4

    When you simiplify the problem we are left with x and our answer.

    When done correctly you will find that it takes 3 3/4 minutes to fill a tank that holds 16 1/2 gallons.
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