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

Anastasia is grocery shopping with her father and wonders how much shopping is left to do.

Full solution

Q. Anastasia is grocery shopping with her father and wonders how much shopping is left to do.
  1. Understand Percentage Relationship: Understand the relationship between the percentage and the total number of items.\newlineAnastasia's father says they have 60%60\% of the items on their list, which means that the 1212 items in the cart represent 60%60\% of the total number of items on the list.
  2. Set Up Equation: Set up the equation to find the total number of items on the list. Let the total number of items on the list be represented by xx. According to the percentage formula (Part = Percent ×\times Whole), we have: 12=0.60×x12 = 0.60 \times x
  3. Solve for Total: Solve for xx to find the total number of items on the list.\newlineDivide both sides of the equation by 0.600.60 to isolate xx:\newlinex=120.60x = \frac{12}{0.60}
  4. Perform Division: Perform the division to calculate the total number of items. x=120.60x = \frac{12}{0.60} x=20x = 20
  5. Verify Solution: Verify that the solution makes sense.\newlineIf there are 2020 items on the list and they have 1212 items in the cart, then 1212 is indeed 60%60\% of 2020, which confirms that the calculation is correct.