Respuesta :
The rate of change of the area covered by a mold on a piece of bread is [tex]\boxed{0.67}.[/tex]
Further explanation:
The rate of change can be expressed as follows,
Given:
Nine days ago the area covered by a mold on a piece of bread was 3 square inches.
Today the mold covers 9 square inches.
Explanation:
The final area covered by a mold on a piece of bread is [tex]9{\text{ square inches}}.[/tex]
The initial area covered by a mold on a piece of bread is [tex]3{\text{ square inches}}.[/tex]
Initial time is 0.
Final time is 9.
The rate of change can be calculated as follows,
[tex]\begin{aligned}{\text{Rate of change}}&= \frac{{{\text{Final value}} - {\text{Initial value}}}}{{{\text{Final time}} - {\text{Initial time}}}}\\&=\frac{{9 - 3}}{{9 - 0}}\\&= \frac{6}{9}\\&= \frac{2}{3}\\&= 0.67\\\end{aligned}[/tex]
The rate of change of the area covered by a mold on a piece of bread is [tex]\boxed{0.67}.[/tex]
Learn more:
1. Learn more about inverse of the functionhttps://brainly.com/question/1632445.
2. Learn more about equation of circle brainly.com/question/1506955.
3. Learn more about range and domain of the function https://brainly.com/question/3412497
Answer details:
Grade: High School
Subject: Mathematics
Chapter: Number system
Keywords: Area, covered area, mold, piece, bread, 3 square inches, today, mold covers, rate of change, nine days ago, 9 square inches, final value, initial value, mold.