Question

Здравствуйте! помогите мне пожалуйста решить задачу "Бабушка связала тесьму длинной 3м. Чему равна ширина тесьмы, если её площадь равна 900см2" ? спасибо большое!

Answer 1

3 м = 300 см
900:300=3(см)- ширина тесьмы

Answer 2

3м =300см
900/300=3см ширина тесьмы
Формула площади А*В
300*3=900см кв. 

Answer 3

Problem Analysis

To solve this problem, we need to find the width of a ribbon given that its length is 3 meters and its area is 900 square centimeters. We can use the formula for the area of a rectangle, which is length multiplied by width. In this case, the length is given as 3 meters, but we need to convert it to centimeters since the area is given in square centimeters.

Solution

To find the width of the ribbon, we can rearrange the formula for the area of a rectangle and solve for the width. Let's denote the width as w.

The formula for the area of a rectangle is:

Area = Length × Width

Given that the length is 3 meters, we need to convert it to centimeters. Since 1 meter is equal to 100 centimeters, we can multiply the length by 100 to convert it to centimeters:

Length = 3 meters × 100 centimeters/meter = 300 centimeters

Now we can substitute the values into the formula:

900 cm² = 300 cm × w

To solve for w, we can divide both sides of the equation by 300 cm:

w = 900 cm² / 300 cm = 3 cm

Therefore, the width of the ribbon is 3 centimeters.

Answer

The width of the ribbon is 3 centimeters.