in year 7 sally was 1.42m in year 11 sally was 1.78m tall calculate the % increase in sara’s height from year 7 to 11 answer to 1  decimal place

To calculate the percentage increase in Sally's height from Year 7 to Year 11, we use the following formula for percentage increase:

\[
\text{Percentage Increase} = \left( \frac{\text{Final Value} - \text{Initial Value}}{\text{Initial Value}} \right) \times 100
\]

Where:
- Initial Value = 1.42 m (Sally's height in Year 7)
- Final Value = 1.78 m (Sally's height in Year 11)

Substitute these values into the formula:

\[
\text{Percentage Increase} = \left( \frac{1.78 - 1.42}{1.42} \right) \times 100
\]

Now, let's compute that:

\[
\text{Percentage Increase} = \left( \frac{0.36}{1.42} \right) \times 100 = 25.35\%
\]

Rounded to 1 decimal place, the percentage increase in Sally's height is **25.4%**.

Would you like further details or explanations?

Here are 5 related questions:
1. How do you calculate percentage decrease?
2. What is the percentage increase formula for multiple stages of growth?
3. Can you compare Sally's growth rate with another individual's over the same period?
4. What other factors besides height could you compare using percentages?
5. How would you express a fractional increase in percentage form?

**Tip:** Always express percentage increases with respect to the initial value to avoid confusion.

in year 7 sally was 1.42m in year 11 sally was 1.78m tall calculate the % increase in sara’s height from year 7 to 11 answer to 1 decimal place

Calculate the percentage increase in Sally's height from Year 7 to Year 11, going from 1.42m to 1.78m. Learn how to use the percentage increase formula and get the solution rounded to 1 decimal place. Suitable for students in Grades 6-8.

Math Problem Statement

Solution

Ask a new question for Free

By Image

Math Problem Analysis

Mathematical Concepts

Formulas

Theorems

Suitable Grade Level

Related Recommendation