Question

Anastasia is grocery shopping with her father and wonders how much shopping is left to do. "We already have 60%, percent of the items on our list," her father says. Anastasia sees 12 items in the cart. How many grocery items are on the list?

Answer 1

The answer is:  " 20 items " .
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60% of x = 12.  Solve for x.

60% = 60/100 = 6/10 = 3/5 = 0.6 .

(3/5)x = 12 ;

Multiply each side of the equation by "5" :

5* (3/5)x = 12 * 5 ;

3x = 60 ; 

Divide each side of the equation by "3" ; 

3x/ 3 = 60 / 3 ;

to get:

x = 20.
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The answer is:  " 20 items " .
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