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kari74 [83]
3 years ago
10

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 find the

rate of change
Mathematics
2 answers:
Gennadij [26K]3 years ago
3 0
The rate of change would be 0.6 to 6
andrezito [222]3 years ago
3 0

The rate of change of the area covered by a mold on a piece of bread is \boxed{0.67}.

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 9{\text{ square inches}}.

The initial area covered by a mold on a piece of bread is 3{\text{ square inches}}.

Initial time is 0.

Final time is 9.

The rate of change can be calculated as follows,

\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}

The rate of change of the area covered by a mold on a piece of bread is \boxed{0.67}.

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 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.

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