Answer:
xy & 10xy.
Step-by-step explanation:
The original value is 32xy. Because it has the variable xy, you need to choose values with those same variables. This leaves xy and 10xy.
Answer:
2 1/4
Step-by-step explanation:
In an equilateral triangle, all 3 sides are the same length. If one side length is x, the perimeter is x+x+x or 3x which is equal to 6 3/4 as said in the problem. You get the equation 3x=6 3/4. Dividing both sides by 3, you get x=2 1/4.
Answer:
5.625
Step-by-step explanation:
450÷80 I hope I'm right and it helps if not I'm sorry.
Answer:
k = -50
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality<u>
</u>
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
0.8k - 20 = -60
<u>Step 2: Solve for </u><em><u>k</u></em>
- [Addition Property of Equality] Add 20 on both sides: 0.8k = -40
- [Division Property of Equality] Divide 0.8 on both sides: k = -50