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Karolina [17]
3 years ago
5

1/5 k = 20 solvve for k

Mathematics
2 answers:
Oksanka [162]3 years ago
8 0

Answer:

k=100

Step-by-step explanation:

Solve for  k  by simplifying both sides of the equation, then isolating the variable.

igomit [66]3 years ago
4 0

Answer:

k=100

Step-by-step explanation:

20x5=100

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A large farm tractor costs $98,424. If a farmer makes 36 equal payments, how much is each payment
mrs_skeptik [129]

Answer:

$2734

Step-by-step explanation:

$98,424 / 36 = $2734

6 0
3 years ago
What are the differences between an (Algebraic) equation and expression?
lara31 [8.8K]

Hello!


An equation has an (=). They equal something. For example, 1+1=2 is an equation.


An expression does not have an equal sign. For example, 2 or 1+3 are both expressions. They have no equal sign.


I hope this helps!

6 0
3 years ago
What is the value of x if f(x) = 23
lilavasa [31]

Answer:

in f (x)= x

here x=x so answer is 23

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3 years ago
(WILL MARK BRAINLIEST) Solve x^2-4x-12=0. SHOW YOUR WORK! show and DESCRIBE EACH STEP!
Natasha_Volkova [10]
<span>x^2 - 4x - 12 = 0
factors
(x - 6)(x + 2) = 0
</span>Set (x - 6) and (x + 2)<span> equal to </span><span>0</span><span> and solve for </span><span>xx</span>.<span>
x -  6 = 0; x = 6
x + 2 = 0; x = -2

answer
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8 0
3 years ago
Read 2 more answers
The Wall Street Journal reported that automobile crashes cost the United States $162 billion annually (2008 data). The average c
ivanzaharov [21]

Answer:

n=(\frac{2.326(500)}{120})^2 =93.928 \approx 94

So the answer for this case would be n=94 rounded up to the nearest integer

Step-by-step explanation:

Information given

\bar X represent the sample mean

\mu population mean (variable of interest)

\sigma= 500 represent the population standard deviation

n represent the sample size  

Solution to the problem

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{s}{\sqrt{n}}    (a)

And on this case we have that ME =120 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

The confidence2 level is 98% or 0.98 then the significance level would be \alpha=1-0.98=0.02 and \alpha/2=0.01, the critical value for this case would be z_{\alpha/2}=2.326, replacing into formula (b) we got:

n=(\frac{2.326(500)}{120})^2 =93.928 \approx 94

So the answer for this case would be n=94 rounded up to the nearest integer

8 0
3 years ago
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