Answer:
-15
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>
(4x + 2)(x - 5) / 2
x = 2
<u>Step 2: Evaluate</u>
- Substitute: (4 · 2 + 2)(2 - 5) / 2
- Parenthesis - Multiply: (8 + 2)(2 - 5) / 2
- Parenthesis - Add: 10(2 - 5) / 2
- Parenthesis - Subtract: 10(-3) / 2
- Multiply: -30 / 2
- Divide: -15
Kevin makes $840 in 4 weeks.
how much he makes per day $42
(3.5* 12= 42)
How much he makes per week
(42*5=210)
<h2>A. 2x-y=96</h2><h2 />
Here are all the equations graph on Desmos. It is very helpful for graphing! Take a look and plug in all the equations, including y = 2x + 5.
Answer:
x = 2
Step-by-step explanation:
16 - x = 2(3x + 1)
16 - x = 6x + 2
-x - 6x = 2 - 16
-7x = -14
x = -14/-7
x = 2
hope this helps
Answer:
Step-by-step explanation:
Given in the data set as
26, 34, 38, 49, 65, 76, 81
Sum = 369
No of entries = 7
Mean =52.71
When 1213 is included
New sum = 1582
No of entries =8
New mean = 197.75
Thus mean increases by 145.04
