Ask question

Ask question

All categories

3 years ago

11

During a sale a store offered a 40% discount on a particular camera that was originally price at $450 after the sale the discoun

t price of the camera was increased by 40% what was the price of the camera after this increase?

1 answer:

Artemon [7]3 years ago

3 0

£378

$450×0.6=$270.

$270×1.4=$378

You might be interested in

Pls help ;/ not hard btw

Colt1911 [192]

Answer:

$- 10z - 2$

Step-by-step explanation:

this is simplify

7 0

2 years ago

Subtract 4x from 6x-5.

Ahat [919]

Answer:

2x-5

Step-by-step explanation:

6x-5-4x

2x-5

5 0

2 years ago

Read 2 more answers

This is the choices <br> 88<br> 70<br> 110<br> 120

s344n2d4d5 [400]

Answer:

110

Step-by-step explanation:

Y and X have to equal 180

70+x+180

=110

7 0

2 years ago

Read 2 more answers

The latest poll from ESPN asked fans what their favorite sport was, considering pro, college and highschool levels. Out of 1000

shepuryov [24]

Answer:

Confidence interval is $0.2911$

Step-by-step explanation:

Given that 32% of fans sport is basketball as favorite sport. So total number of fans is,

$32\%\times 1000$

$= \dfrac{32}{100}\times 1000$

$=320$

So 320 fans favorite sport is basket ball.

Now find sample proportion ,

$\widehat{p}=\dfrac{number\:of\:people\:in\:the\:sample}{total\:number\:of\:people}$

Substituting the value,

$\widehat{p}=\dfrac{320}{1000}$

$\widehat{p}=0.320$

Formula for confidence interval is,

$CI=\widehat{p}\pm z\sqrt{\dfrac{\widehat{p}\left (1-\widehat{p}\right )}{n}}$

To calculate the z value.

$Confidence Level=1-\alpha$

$0.95=1-\alpha$

$0.05=\alpha$

Now divide above value by 2,

$\dfrac{0.05}{2}=\dfrac{\alpha}{2}$

$0.025=\dfrac{\alpha}{2}$

To find the value of z score calculate the area under the curve as follows

$A=\dfrac{1+CL}{2}$

$A=\dfrac{1+0.95}{2}$

$A=\dfrac{1.95}{2}$

$A=0.975$

On z table, find the value of 0.975. So the row corresponding to 0.975 is 1.9 and column corresponding to 0.975 is 0.06. Adding these two values the z score is 1.96.

or find the value from excel by using command as follows,

=NORM.S.INV(0.025)= -1.959963985

Now substituting the value,

$CI=0.320\pm 1.96\sqrt{\dfrac{0.320\left (1-0.320\right )}{1000}}$

$CI=0.320\pm 0.02891$

Lower end of the interval is,

$CI=0.320- 0.02891$

$CI=0.2911$

Upper end of the interval is,

$CI=0.320+ 0.02891$

$CI=0.3489$

Therefore 95% confidence interval is $0.2911$

7 0

2 years ago

How is Input different from Output ? ( List at least 2 examples for Input and at least 2 for Output)

emmainna [20.7K]

Answer:

Input is the number you feed into the expression , and the output is what you get when the calculations are finished

3 0

2 years ago