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

The rate of change of the area covered by a mold on a piece of bread is

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

The initial area covered by a mold on a piece of bread is

Initial time is 0.

Final time is 9.

The rate of change can be calculated as follows,

The rate of change of the area covered by a mold on a piece of bread is

Learn more:

1. Learn more about inverse of the functionhttps://.

2. Learn more about equation of circle .

3. Learn more about range and domain of the function

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.

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

what is the graph

step-by-step explanation: