8.4 percent of a is 42
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100%/x%=42/8.4
(100/x)*x=(42/8.4)*x - we multiply both sides of the equation by x
100=5*x - we divide both sides of the equation by (5) to get x
100/5=x
20=x
x=20
8.4 is 20% of 42
(100/x)*x=(42/8.4)*x - we multiply both sides of the equation by x
100=5*x - we divide both sides of the equation by (5) to get x
100/5=x
20=x
x=20
8.4 is 20% of 42
exactry 20%
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