Question 72195
Write this problem exactly as it is stated:
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{{{ 21 = 0.35*X}}}
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Note that 0.35 is equivalent to 35%.  X is the unknown number you are looking for.
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To find X, the number you are looking for, divide both sides of the equation by 0.35.
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{{{21/0.35 = cross((0.35))*X/cross((0.35))}}}
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Note that on the right side the 0.35 factor in the numerator cancels with the 0.35 factor in
the denominator and you are left with just X on the right side.  On the left side the answer
to {{{21/0.35}}} is {{{60}}}.
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So the answer to this problem is {{{X = 60}}}. 35% of 60 is 21.
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Hope this helps you to see how to solve this problem. In the statement of the problem, the
word "is" means "equals" and "unknown number" means a variable, often written as "X" or 
some other letter.  And "35 percent of" means "35% times" or "0.35 times."