A. A bar model to compare Alex's previous height to the amount he grew over the past year is shown in the picture below.
B. The percentage in growth is equal to 20%.
Part A.
Based on the information provided above, we can reasonably infer and logically deduce that Alex's previous (original) height must be 5 feet and his current (new) height is 6 feet, while his growth rate must be 1 foot per year.
Part B.
Since Alex's current (new) height is greater than his previous (original) height, the percentage in growth represents a percentage increase;
Percentage increase = (Final value - Initial value)/Initial value × 100
Percentage increase = (6 - 5)/5 × 100
Percentage increase = 1/5 × 100
Percentage increase = 20%.
Complete Question:
Alex grew 1 foot over the past year. He is now 6 feet tall.
Part A
Draw a bar model to compare Alex's previous height to the amount he grew over the past year.
Part B.
What’s the percentage in growth?