Respuesta :

MalloryJS

There are a couple ways to solve this. One way, and probably the easiest way, is by using proportions.

The two fractions we need to use are 12/x and 60/100 These two fractions are equal, but we don't know what the denominator of the first fraction.

We can find that out by cross multiplying. If our fractions are a/b and c/d we need to multiply a and d then b and c. Somehow, these two products are going to match up.

So, we multiply 12 and 100 to get 1200. Multiplying x and 60, we get 60x.

Since 1200=60x, we just need to divide 1200 by 60 to get x. (That equals 20 btw)

In conclusion 12 is 60% of 20.


Any questions?

fichoh

The number in which 60% of it's value gives a value of 12 can be calculated using the percentage expression. Hence, the number ls 20

Let the number = n :

Setting up a percentage expression :

  • 60% × n = 12

0.6n = 12

Divide both sides by 0.6

0.6n/0.6 = 12/0.6

n = 20

Therefore, 60% of 20 gives a value of 12.

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