Word problem lengths of a rectangle - Word Problem help

The video tutorial explains how to solve a word problem involving a rectangle where the length is four times the width, and the perimeter is 30. The instructor emphasizes the importance of drawing a picture to visualize the problem. Variables are defined for the length and width, and an equation is set up using the perimeter formula. The equation is solved to find the width, which is 3, and the length is calculated as 12. The tutorial concludes with the final answer, reinforcing the problem-solving process.

What is the first step recommended when tackling a word problem involving shapes?

• Write down the given numbers

• Draw a picture

• List all possible formulas

• Guess the answer

If the length of a rectangle is four times the width, how can the length be expressed in terms of the width?

• Length = 4 * width

• Length = width - 4

• Length = width / 4

• Length = 4 + width

What is the formula for the perimeter of a rectangle?

• Perimeter = length * width

• Perimeter = 2 * length + width

• Perimeter = 2 * (length + width)

• Perimeter = length + width

After setting up the equation for the perimeter, what is the next step to find the width?

• Divide by 10

• Add all sides together

• Subtract 10 from both sides

• Multiply both sides by 10

What is the width of the rectangle if the perimeter is 30 and the length is four times the width?

• 5

• 6

• 4

• 3