El valor del número A es 692.31.
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Percentage</h3>
The percentage is the given definition for a fraction whose denominator is equal to 100. It is represented by %. See the following example:
The percentage is considered a math tool with several applications and areas, for example: medicine, engineering, investments, supermarkets, drugstores,banks etc.
The exercise asks you the value of A and it gives you the value (900) that represents 130%A. Thus, you should write an equality between the division the percentage and the variable A by 100 with the value 900.
You should follow the steps below.
You can check the result :
Read more about the percentage here:
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Altogether Katrina and her seven friends equal eight. Eight divided by four is two cookies. The answer is 2.
By the formula for the area of an equilateral triangle (s^2sqrt(3)/4), the area is sqrt(3)/4.