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Math

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Solve the following: 56 is ______% of 125

What number is 45% of 680?

Solve the following: 315 is 126% of

If a number increases from 47 to 70.5, what is the rate of increase?

  • Math -

    56 = x*125
    x = 56/125 = 0.448 or 44.8%

    45% = .45, so
    .45*680 = 306

    125% = 1.25, so
    315 = 1.25x
    x = 315/1.25 = 252

    % increase is the change divided by the initial value, so we have

    (70.5-47)/47 = .5 or a 50% increase

  • Math -

    Natureland garden center buys lawn mowers that list for $679.95 less a 30% trade discount what is the dollar amount of the trade discount?

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