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3 years ago

How many solutions does the equation 9x +3=9x + 5 have?

Mathematics

2 answers:

Sphinxa [80]3 years ago

8 0

Answer:

none

Step-by-step explanation:

Because X has the same coefficient on both sides but a different value is being added to it, there cannot be an solution.

9x+3=9x+5

-9x -5

-2=0, which doesnt work so theres no solution

kkurt [141]3 years ago

3 0

Answer:

This equation doesn't have any solution

Step-by-step explanation:

Given that,

9x +3=9x + 5

Subtract 3 from both sides

9x+3-3=9x+5-3

9x=9x+2

Since 9x cannot be equals to 9x+2, no matter the value of x.

Or further still divide through by 9

9x/9 = 9x/9 + 2/9

x=x + 2/9

it is not possible for x to be equal to x+2/9.

So it doesn't have a solution

x≠x+2/9

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How do you do this. Please give a full answer and explain why.

OverLord2011 [107]

Law of Exponent

$\displaystyle \large{ {a}^{ - n} = \frac{1}{ {a}^{n} } }$

Compare the terms.

$\displaystyle \large{ {a}^{ - n} = {( - 2)}^{ - 3} }$

Therefore, a = -2 and n = 3. From the law of exponent above, we receive:

$\displaystyle \large{ {( - 2)}^{ - 3} = \frac{1}{ {( - 2)}^{ 3} } }$

Exponent Def. (For cubic)

$\displaystyle \large{ {a}^{3} = a \times a \times a }$

Factor (-2)^3 out.

$\displaystyle \large{ {( - 2)}^{ - 3} = \frac{1}{( - 2) \times ( - 2) \times ( - 2)}}$

(-2) • (-2) = 4 | Negative × Negative = Positive.

$\displaystyle \large{ {( - 2)}^{ - 3} = \frac{1}{4 \times ( - 2)}}$

4 • (-2) = -8 | Negative Multiply Positive = Negative.

$\displaystyle \large{ {( - 2)}^{ - 3} = \frac{1}{ - 8}}$

If either denominator or numerator is in negative, it is the best to write in the middle or between numerator and denominators.

Hence,

$\displaystyle \large \boxed{ {( - 2)}^{ - 3} = - \frac{1}{ 8}}$

The answer is - 1 / 8

3 0

2 years ago

The sum of two numbers is 65 one is 4 times as large as the others.what are the numbers?

bixtya [17]

let the numbers be n and m

n+m=65

n=4m

So when we put our work in:

4m+m=65

5m=65

m=13

n=52

So therefore your two numbers are 52 and 13!

Hope this helped! °ω°

6 0

3 years ago

Factors of 9.52? Please help. Google won’t tell

Elina [12.6K]

Answer:

9.52 x 1

4.26 x 2

4 x 2.38

Hope that helps

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3 years ago

List at least two technology tools that can help with calculating future value of an investment. Using complete sentences, expla

Setler79 [48]

Answer:

scientific or graphing calculator
TVM solver
spreadsheet

Step-by-step explanation:

For many future-value calculations, a scientific calculator is a sufficient tool. Of course, one must know the appropriate formula to use.

A good alternative when the calculation is a little messy is a TVM solver or special-purpose financial calculator. I prefer this tool because it requires little more than entering numbers in to the right slots.

Most modern spreadsheet programs and apps come with financial formulas built in. So, they, too, can be easy tools to use for calculating future value. These are especially handy when a number of scenarios need to be explored. (I always have to look up the formulas to see which one is appropriate and what its inputs are. So, I find a spreadsheet less useful for a simple calculation.)

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3 years ago

Drag each statement to the correct category. Classify the sentences based on whether they are or are not statements. Prime numbe

Archy [21]

Answer:

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4. Addition is the simplest mathematical operation. (Not a Statement)

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i hope it will help you!

6 0

2 years ago