🔍 Key Concepts

• Standard weight of 1-inch steel plate in pounds per square foot • How plate weight changes proportionally with thickness • Setting up a simple ratio between known and unknown thickness

💭 Think About

• If 1 inch of plate weighs a known amount per square foot, how would you find the thickness that weighs 30.6 pounds per square foot? • Are the answer choices more or less than 1 inch, and which one would give a weight closest to 30.6 pounds if weight changes in direct proportion to thickness? • How can you use a fraction or decimal of 1 inch to match 30.6 pounds from the full-thickness weight?

✅ Before You Answer

• Identify or recall the weight of a 1-inch plate per square foot (in pounds). • Confirm that you’re treating weight as directly proportional to thickness (double the thickness = double the weight). • Before choosing, check that your calculated thickness matches one of the listed options and is reasonable compared with 1 inch.