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2 years ago

A man bought a car for Gh55,000.00 and sold it for Gh65,000.00. Find the percentage gain.

Mathematics

1 answer:

IgorLugansk [536]2 years ago

5 0

Answer:

18.18%

Step-by-step explanation:

(65000-55000)/55000×100

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The test statistic of z equals negative 1.37 is obtained when testing the claim that p equals1 divided by 4. a. Using a signific

spin [16.1K]

Answer: a) critical value = 0.0853, b) we reject the null hypothesis.

Step-by-step explanation:

Since we have given that

z = -1.37

And the hypothesis are given below:

$H_0:p=\dfrac{1}{4}=0.25\\\\H_1:p\neq 0.25$

Since α = 0.01

since critical value = 0.0853

As we can see that 0.853 < 0.25.

so, we reject the null hypothesis.

Hence, a) critical value = 0.0853, b) we reject the null hypothesis.

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3 years ago

Prove the following statement: If the x- and y-intercepts of a line are identical nonzero numbers, the line must have a slope of

dlinn [17]

Answer:

Step-by-step explanation:

Proof:

If:

x intercept is at a number nonzero "a"

so the point where it intersects the x-axis is at (a,0)

y-intercept is at the same nonzeronumber "a"

so the point where it intersects the y-axis is at (0,a)

Then:

slope between point (a,0) and (0,a) is m= (y2-y1)/(x2-x1) = 0-a/a-0=-a/a= -1

x intercept is 2 (for example)

so the point where it intersects the x-axis is at (2,0)

y-intercept is 2

so the point where it intersects the y-axis is at (0,2)

slope between point (2,0) and (0,2) is m= (y2-y1)/(x2-x1) = 0-2/2-0=-2/2=-1

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3 years ago

What is 2,000 *20/50? helpssssss

bearhunter [10]

2,000 *20/50 is 800.

800 is your answer.

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3 years ago

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4log x-1/2log y+3log z

babymother [125]

Following rules of logs, we can do the following:

log x^4 - log y^(1/2) + log z^3

Combine the first and 3rd factors to get log [x^4*z^3]

Seeing that the neg. sign signifies division, write this new term - log y^(1/2) as a quotient:

[x^4*z^3]
log ----------------
y^(1/2)

Next time, please include the instructions when you present your problem.
Thx.

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3 years ago

Solve the equation below<br> -1/5x-18=2

rjkz [21]

-1/5x - 18 = 2
-x - 18(5) = 2(5)
-x = 10 + 90
-x = 100
x = -100

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3 years ago

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