3 years ago

When is the difference of two decimals equal to a whole number?

1 answer:

4 0

Answer:

The sum (or difference) of two decimals is a whole number when the sum (or difference) of the integers to the right of the decimal points is 0.

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Ronch [10]

Given parameters:

Percentage gain = 300%

Selling cost last year = $2420

Unknown:

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To solve this problem;

Profit percent = $\frac{Selling cost this year - Selling cost last year}{Selling cost last year} x 100$

300 = $\frac{S - 2420}{2420} x 100$

3 = $\frac{S - 2420}{2420}$

S- 2420 = 7260

S = $9680

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