21% is the same as 0.21 (move the decimal point to the left two place values to make it a decimal).
Next, to make it a fraction, move the decimal to the right two place values, and place the number over 100
0.21 = 21/100
21/100 is your answer
hope this helps
=
Multiply both sides by 15
6 =
Multiply both sides by c
6c = 30 Divide both sides by 6
c = 5
15 + 2x - 4 = 9x + 11 - 7x
2x + 11 = 2x + 11
always true
2x + 3(4x - 1) = 2(5x + 3) + 4x
2x + 12x - 3 = 10x + 6 + 4x
14x - 3 = 14x + 6
never true
(3/5)³
=(3³)/(5³)
=27/125
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As:
3*3*3=27
And:
5*5*5=125
