The total number of coins in Lucy's coin collection is equal to 80 coins.
Given the following data:
A percentage can be defined as any number that is expressed as a fraction of hundred (100).
Let the total number of coins be T.
[tex]\frac{15}{100} \times T = 12\\\\0.15T=12\\\\T=\frac{12}{0.15}[/tex]
T = 80 coins.
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The answer is 80 coins.
For this, you have to multiply 12 (quarters) by 15%.
Percents in an equation are written as decimals so 15% will be written as 0.15.
12 x 0.15 = 80.
Tip; If you have problems like these or overall any type of 2 number percent question, a quantity that is not the percent (such as 12) will be multiplied by the percent (such as 15% or 0.15).
Thank you.
