Aposter is 8 1/2 inches by 11 inches. you enlarge the poster by increasing each dimension by a factor of 2 1/2. what is the area of the new poster?

we know that

The scale factor is equal to

Step 1

Convert mixed number to an improper fractions

Step 2

Increasing each dimension by the scale factor

Step 3

Find the area of the new poster

we know that

the area of the poster is equal to find the area of a rectangle

convert to mixed number

therefore

the answer is

The area of the new poster is

Alternative Method

Let

A1--------> area of the original poster

A2------> area of the new poster

sf-------> scale factor

we know that

phosphate, calcium ion, chloride ion, neon atom

step-by-step explanation: