Using Grid Models to Solve Percentage Problems
- Solve the equation: (part/whole) = percent/100 => (part/40) = 20/100 => (part) = 8
- Check your work: $40 – $8 = $32, which is the price of the shirt after a 20% discount.
- The sale price of the shirt is $32.
Using Grid Models to Solve Percentage Problems – Examples 2
Using Grid Models to Solve Percentage Problems – Examples 3
Solutions:
Step 1: Since 4 of the 25 students got A in an exam, write it as a fraction: \(\frac{4}{25}\)
Step 2: To know the percentage of the students who got an A in an exam, divide 4 by 25. It is 16%.
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