Question
upstudy study bank question image url

a of a rectangle is \( 52 \mathrm{~m}^{2} \), and the length of the rectangle is 5 m less than twiee the witth. Find the dime ength ? \( \square \) Width I \( \square \) III

Ask by Collins Moreno. in the United States
Feb 24,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

Width = 6.5 meters Length = 8 meters

Solution

Let the width be w (in meters). According to the problem, the length is 5 meters less than twice the width. That is,   Length L = 2w – 5. The area of the rectangle is given as 52 m², so   Area A = length × width = (2w – 5) × w = 52. This gives the equation:   2w² – 5w = 52   2w² – 5w – 52 = 0 Now, solve the quadratic equation 2w² – 5w – 52 = 0. Step 1: Calculate the discriminant:   D = b² – 4ac = (–5)² – 4 × 2 × (–52) = 25 + 416 = 441. Step 2: Find the square root of D:   √441 = 21. Step 3: Use the quadratic formula:   w = [–b ± √D] / (2a) = [5 ± 21] / 4. We have two potential solutions:   w = (5 + 21) / 4 = 26/4 = 6.5  or  w = (5 – 21) / 4 = (–16)/4 = –4. Since width cannot be negative, we discard –4. Thus,   w = 6.5 m. Now, find the length:   L = 2w – 5 = 2(6.5) – 5 = 13 – 5 = 8 m. Answer:   Width = 6.5 m   Length = 8 m

Answered by UpStudy AI and reviewed by a Professional Tutor

error msg
Explain
Simplify this solution

Bonus Knowledge

To find the dimensions of the rectangle, let's first define the width as \( w \). According to the problem, the length \( l \) is \( 2w - 5 \). Since the area \( A \) of a rectangle is given by \( A = l \times w \), we can set up the equation: \[ 52 = (2w - 5) \times w \] Solving this quadratic equation will give us the width, which we can then substitute to find the length. Once you calculate \( w \) (width), plug it back into \( l = 2w - 5 \) to find the length! Imagine living in ancient Mesopotamia where shapes and dimensions were essential for agriculture! Back then, the Babylonians were pioneering what we now call geometry to solve problems just like yours. They used a base-60 counting system, wrapping geometry into their daily lives laying the foundation for mathematics today. If you're curious about shapes and dimensions, diving into geometry isn't just about formulas. Check out "Geometry: Euclid and Beyond" by Robin Hartshorne. It takes you on a historical journey through the development of geometric principles, making connections from ancient to modern times. You’ll be amazed at how these concepts have evolved!

Related Questions

Latest Geometry Questions

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy