Math, asked by afriantoa, 10 months ago

A person jogged 10 times along the perimeter of a rectangular field at the rate of 12 kilometers per hour for 30 minutes. If field has a length that is twice its width, find the area of the field in square meters.

Answers

Answered by studyhelper46
18

Answer:

person jogged 10 times along the perimeter of a rectangle field at the rate of 12 kilograms per hour for 30 minutes.

If field has a length twice it's width, find the area of the field in square meters

:

Find how far he goes in a half hour at 12 km/hr

12 * 1%2F2 = 6 km or 6000 meters

He jogged 10 times around, therefore

6000/10 = 600 meters is the perimeter of the rectangle

:

let w = the width of the rectangle

"If field has a length twice it's width", therefore

2w = the length of the rectangle

:

The perimeter

2(2w) + 2w = 600

simplify, divide by 2

2w + w = 300

3w = 300

w = 300/3

w - 100 meters is the width

then

2(100) = 200 meters is the length

The area

A = 200 * 100

A = 20,000 sq meters is the area of the rectangle

Answered by wasibilal1997
6

Answer:

20,000

Step-by-step explanation:

Figure it out yourself, your homework.

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