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arsen [322]
3 years ago
8

A stereo that cost $500 and sold for $750 in profit percentage​

Mathematics
1 answer:
Mashutka [201]3 years ago
7 0

Answer:

50% profit

Step-by-step explanation:

750-500 is 250 so that is a 50% profit/markup

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6=−w8 how can i solve this
Vaselesa [24]
Divide 6 by -8 to get the variable alone!
6/-8 < division< equation
4 0
3 years ago
Based on information from Harper’s Index, 37% of adult Americans believe in Extraterrestrials. Out of a random sample of 100 adu
san4es73 [151]

Answer:

z(s)  is in the rejection zone , therefore we reject H₀

We have enough evidence to claim the proportion of individuals who attended college and believe in extraterrestrials is bigger than 37%

Step-by-step explanation:

We have a prortion test.

P₀  =  37 %         P₀  = 0,37

sample size  =  n  =  100

P sample proportion   =   P  = 47 %        P  =  0,47

confidence interval  95 %

α  =   0,05  

One tail-test  (right tail) our case is to show if sample give enough information to determine if proportion of individual who attended college is higher than the proportion found by Harper´s index.

1.-Hypothesis:

H₀      null hypothesis                        P₀  =  0,37

Hₐ  alternative hypothesis                P₀  >  0,37

2.-Confidence interval 95 %

α  =   0,05        and    z(c)  =  1.64

3.-Compute of z(s)

z(s)  =  [  P  -  P₀  ]  /√(P₀Q₀/n) ]  

z(s)  =  [ (  0,47  -  0,37  ) /  √0.37*0,63/100

z(s)  = 0,1 /√0,2331/100     ⇒   z(s)  = 0,1 /0,048

z(s)  = 2.08

4.-Compare  z(s)   and  z(c)

z(s) > z(c)        2.08  > 1.64

5.-Decision:

z(s)  is in the rejection zone , therefore we reject H₀

We have enough evidence to claim the proportion of individuals who attended college and believe in extraterrestrials is bigger than 37%

5 0
3 years ago
What is 33 1/3% profit if $4800
shutvik [7]

Answer:

The left side 33.3 does not equal to the right side 4800, which means that the given statement is false Hope this helps

Step-by-step explanation:

I don't know if u meant converting to a percentage But i guess thats your Answer

4 0
3 years ago
Read 2 more answers
If Shannon wants to fill a spherical balloon so that it has a circumference of 8π in, how much air will she need to use to fill
lapo4ka [179]

The Volume of air needed for a spherical balloon of radius 4 inch and circumference 8π is 85.3 cubic inch

<h3>Volume of Sphere</h3>

Given Data

  • Circumference = 8π

Let us find radius

circumference = 2πr

8π = 2πr

8 = 2r

r = 8/2

r = 4 inch

Let us find the volume of the sphere

Volume = 4/3πr^3

Volume = 4/3* π*4^3

Volume = 4/3*π64

Volume = 256π/3

Volume = 85.3 cubic inch

Learn more about volume of sphere here:

brainly.com/question/22807400

4 0
2 years ago
Which equation does the graph below represent? <br>y = 1/4x <br>y= 4x <br>y= -1/4x<br>y= -4x​
iogann1982 [59]

Answer:

y = -4x

Step-by-step explanation:

y = mx+c

gradient, m

= (4-0)/(-1-0)

= -4

y-intercept, c

= 0

y = -4x+0

y = -4x

8 0
3 years ago
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