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3 years ago

What is a constant term or variable term that makes 5x + 20 = 5x + ? have one solution?

Mathematics

1 answer:

In-s [12.5K]3 years ago

6 0

Answer:

It would be 20

Step-by-step explanation:

because 5x+20 = 5x + <u> </u>

it would have to be 20

to have 1 solution

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Fiona needs to choose a five-character password with a combination of three letters and the even numbers 0, 2, 4, 6, or 8.

katen-ka-za [31]

The total outcomes of creating a password is 20

<h3>How to determine the total outcomes creating different passwords with the given characters and numbers?</h3>

The given parameters are

Letters = 3

Digits = 5 digits i.e 0, 2, 4, 6, or 8.

From the question, the digits and the letters cannot be repeated.

So, we have:

Possible letters = 3 characters (position fixed)

Digits = 2 numbers

So, the total outcomes of creating different passwords is

Total = 1 * 1 * 1 * 5 * 4

Evaluate the product

Total = 20

Hence, the total outcomes of creating a password is 20

Read more about combination at:

brainly.com/question/11732255

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8 0

2 years ago

Anthony, Brian and Chris are hired for a job. If Anthony and Brian are working together they will finish the job in minutes. If

Tcecarenko [31]

Answer:

12.5

Step-by-step explanation:

Let individual time taken by Anthony, Brian and Chris = t1 , t2 , t3 respectively

So, total time taken by A & B = 1 / t1 + 1 / t2 , lets suppose = 10 {i}

Total time taken by A & C = 1 / t1 + 1 / t3 , lets suppose = 15 {ii}

Total time taken by B & C = 1 / t2 + 1 / t3 , lets suppose = 20 {iii}

From {i} , 1 / t2 = 10 - 1 / t1

From {ii} 1 / t1 = 15 - 1 / t3

By above two eqtns , 1 / t2 = 10 - (15 - 1 / t3)

1 / t2 = 1 / t3 - 5

Putting in {iii} , 1 / t3 - 5 + 1 / t3 = 20

2 / t3 = 25

t3 = 12.5

5 0

3 years ago

Can I get an explanation on how to do this?

scoray [572]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The equation for the pH of a substance is pH = –log[H+], where H+ is the concentration of hydrogen ions. Which equation models t

Elden [556K]

$\bf \textit{Logarithm Cancellation Rules}
\\\\
log_a a^x = x\qquad \qquad \boxed{a^{log_a x}=x}\\\\
-------------------------------\\\\
pH=-log(H+)\qquad \stackrel{pH}{7.2}=-log(H+)\implies -7.2=log_{10}(H+)
\\\\\\
10^{-7.2}=10^{log_{10}(H+)}\implies 10^{-7.2}=H+\implies \cfrac{1}{10^{7.2}}=H+$

3 0

3 years ago

Read 2 more answers

What is this? Please answer if u know what u are doing oh and thank you for reading this

Vika [28.1K]

Answer: y= -1/3x+1
Explanation:
we can take any points from graph that intersect with the line and find the slope.
take (3,0) (0,1)
to find the slope subtract y-es and x-es
1-0/0-3
-1/3 is the slope
y=kx+b is the form of linear equation, where k is the slope,
hence,
y=-1/3x+b
put any points from the line to this equation.
for example - (3,0)
0=-1/3*3+b
1=b ( b is y intercept)
so our equation is
y=-1/3x+1
Hipe it helps! if you have questions, you can ask!:):)

7 0

3 years ago