Answer:
23
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
[2 × (24 ÷ 3)] + 7
<u>Step 2: Evaluate</u>
- [Brackets] (Parenthesis) Divide: [2 × 8] + 7
- [Brackets] Multiply: 16 + 7
- Add: 23
To simplify 9/56 is easy. You need to find a common factor. For this, the easiest method is to jot them down.
1,3,9
1,2,4,6,7,8,9,14,23,56
As you can see, 9 is the only large common factor. Do if you divide 9 by 9 you get 1 and 56 by 9 you get 6. The answer therefore would be 1/6.
Answer:
The answer to your question is letter C
Step-by-step explanation:
(x² - 5x) + (2x² + 2x - 5)
Process
1.- Remove parenthesis without changing the sign of the terms
x² - 5x + 2x² + 2x - 5
2.- Simplify like terms
(x² + 2x²) + (-5x + 2x) - 5
3.- Result
3x² - 3x - 5
Answer:
The average age of the students at the school is 16.4 years.
Step-by-step explanation:
To find the average age of the students at the school, we multiply each age by it's percentage.
We have that:
7% of the students are 14
22% of the students are 15
24% of the students are 16
23% of the students are 17
19% of the students are 18
The rest is 19
The rest is?
100-(7+22+24+23+19) = 100 - 95 = 5
So 5% of the students are 19
Find the average age of the students at Thomas Jefferson High School.
The average age of the students at the school is 16.4 years.