a school playground is rectangular and has a length of 50 m and a width of 30m as shown. A safety zone of uniform width surrounds the playground. If the area of the safety zone equals the area of the playground, what is the width of the safety zone to 2 decimal places

Step-by-step explanation:

Area of the playground:

Let x m added as safety zone to each length and width, then the area including safety zone is:

Solving for x:

the answer would be 484

step-by-step explanation:

just multiply 0.484 times 1,000 (formula)

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column