Answer:
134.9
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>
9.1p + 8.9r
p = 7
r = 8
<u>Step 2: Evaluate</u>
- Substitute: 9.1(7) + 8.9(8)
- Multiply: 63.7 + 71.2
- Add: 134.9
Answer:
The answer is x = -5
Step-by-step explanation:
2/3x - 1/2 = 1/3 + 5/6. First, multiply the entire equation by the common denominator of 6. This will get rid of the fractions. :)
6(2/3x - 1/2) = 6(1/3 + 5/6x)
4x - 3 = 2 + 5x subtract 5x from both sides
4x - 5x - 3 = 2 add 3 to both sides
4x - 5x = 2 + 3 combine terms
-x = 5 multiply by -1 to make x positive
Answer:
107.500
Step-by-step explanation:
5.450.000-75.000=5.375.000
5.375.000:12 1/2=5.375.000:25/2=5.375.000*2/25=430.000
430.000:4=107.500
+ and - ,
* and :
are inverse operations
Where it is an operation and the result is a number , we have to do the inverse operation for finding the initial number.
verifying :
107.500*4*12 1/2+75.000=5.450.000
Answer:she incorrectly transformed the equation standard form
Step-by-step explanation: