Solve the equation. 12 + 0.35x= 20.05

Answers

Answer 1

Answer: this is what i solved x=23

Answer 2

Answer: Basically you are wanting for x correct? 12 + 0.35x=20.05 12-12+0.35x=20.05-12 0.35x=8.05 .35/.35x=8.05/35 x=23 Check your work 12+.35 (23)=20.05

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Select the postulate that is illustrated for the real numbers.5 + (-5) = 0
• The addition inverse postulate
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Answers

The addition inverse postulate
-because you’re adding the opposite of your beginning number

please help I'm not good at math. What is the equation of the line that has a slope of -4 and passes through the point (2, 3)?

Answers

Answer

y=-4x-1

Step-by-step explanation:

y=-4x1 hope this help

9 thousands = how many tens

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So there are 90,000 tens in 900,000. Hope this helps!!

The perimeter of a rectangle is 34 units. Its width W is 6.5 units. Write an equation to represent the perimeter in terms of the length L, and find the value of L.

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$P=2L+2W\n\nP=34\ \ \ \ \ \ W=6.5\n\n34=2L+2\cdot6.5\n34=2L+13\n34-13=2L\n2L=21\ \ \ \ \ |:2\nL=10.5\n\nLength\ is\ equal\ 10.5$

Answer:

THere ya go

Step-by-step explanation:

Simplify (8j^3-10j^2-7)-(6j^3-10j^2-j+12)

Answers

The first step for solving this expression is to remove the first set of parenthesis.
8j³ - 10j² - 7 - (6j³ - 10j² - j + 12)
When there is a "-" sign in front of the parenthesis,, you must change the sign of each term in the parenthesis. This will look like the following:
8j³ - 10j² - 7 - 6j³ + 10j² + j - 12
Eliminate the opposites in the expression
8j³ - 7 - 6j³ + j - 12
Collect the first set of like term (ones with j³)
2j³ - 7 + j - 12
Calculate the difference between basic numbers
2j³ - 19 + j
Lastly,, use the commutative property to reorder the terms
2j³ + j - 19
Since you cannot simplify this expression any further,, the correct answer to your question is 2j³ + j - 19.
Let me know if you have any further questions
:)

I am an array made with 40 tiles I have an odd number of rows and an even number of tiles in each of my rows the number of my rows plus the number of tiles in each of my rows equals 13 how many rows do I have .

Answers

There are 5 row and 8 tiles in each row calculated using two equation.

What are System of equation?

Simultaneous equations, system of equations Two or more equations in algebra must be solved jointly (i.e., the solution must satisfy all the equations in the system). The number of equations must match the number of unknowns for a system to have a singular solution.

There are four methods to solving systems of equations: graphing, substitution, elimination and matrices.

Given I am an array made with 40 tiles I have an odd number of rows and an even number of tiles in each of my rows the number of my rows plus the number of tiles in each of my rows equals 13

Let "r" be the number of row and "t" be the number of tiles in each row.

Since, array has total 40 tiles

Thus,

r * t = 40

Also given

r +t = 13

From comparing these equation

r = 5 or 8

Since row is odd given

thus, r = 5

and t = 8

therefore, Two equations are used to determine the five rows and eight tiles in each row.