64 is what of 80%

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64 = x × 80%since 80% is obviously a percentage, we must move the decimal over to the left 2 spaces. no we are left with64 = x ×.8now we divide both sides by .864 ÷ .8 = 80remember that when dividing by decimals, you have to move the decimal point to the right however many spaces (in this case, 1) to make the decimal a whole number. then you have to add 0's at the end number being divided equal to the number of spaces you moved the decimal over  (in this case 1)so now your solution is 64 is 80% of  80%.:P hope this helped!