Answer:
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Geometry</u>
Volume of a Cylinder Formula:
- V is volume
- r is radius
- h is height
Step-by-step explanation:
<u>Step 1: Define</u>
Radius <em>r</em> = 2 ft
Height <em>h</em> = 7 ft
<u>Step 2: Solve for V</u>
- Substitute in variables [Volume of a Cylinder Formula]:
- [Volume] Evaluate exponents:
- [Volume] Multiply:
Making 1 necklace takes her 0.5 hours, so making x necklaces, will take her 0.5x hours.
Making 1 bracelet takes her 1 hour, so making y bracelets, will take her 1*y=y hours.
So in total, she needs to work for 0.5x + y hours.
Since she has fewer than 20 hours, 0.5x + y must be smaller that 20.
Thus, we have 0.5x + y<20
Answer:0.5x + y<20
Add MN and NR together.
25 + 12 = 37. Make sure to add the word units on the end if it’s not multiple choice.
Answer:
A
Step-by-step explanation: