Answer:
2) Subtraction Property of Equality Properties
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Addition Property of Equality - Adding on both sides
- Subtraction Property of Equality - Subtracting on both sides
- Multiplication Property of Equality - Multiplying on both sides
- Division Property of Equality - Dividing on both sides
- Transitive Property - If a = b and b = c, then a = c
- Symmetric Property - If a = b then b = a
Step-by-step explanation:
<u>Step 1: Define</u>
4m + 1 = 7 → 4m = 6
<u>Step 2: Identify</u>
We see that we <em>subtracted</em> on on both sides of the equation. Therefore, we would have to use the Subtraction Property of Equality. Therefore, 2 is our answer.
Assume that the dimensions of the room in the plan are a (width ) by b (length),
such that a*b=30.
Since the scale is 1:100, a represents 100a, and b represents 100b.
So the actual dimensions are 100a by 100b.
The area is 100a*100b=a*b*10,000=30*10,000=300,000 (square units)
Answer: 300,000 (square units)
2 1/2 = 2 8/16
so
2 8/16 + 1 1/16 = 3 9/16
The answer is the third option
$281 = 5%
The total amount would be $5,620
