What is 5%of 382dollars

Bucky received $100 for his birthday. How many hours can he jet ski on Lake Smellsomemore if costs $15

mario62 [17]

Answer:

b hours

Step-by-step explanation:

100 minus the 10 on the jacket equals 90. 90 divided by 15 is 6

4 0

4 years ago

Please help Me Solve This Geometry Problem

frozen [14]

6h+5(h-5)= 52

Mutiply the bracket by 5

(5)(h)(5)(-5)= 5h-25

6h+5h-25= 52

move -25 to the other side

sign changes from -25 to +25

6h+5h-25+25= 52+25

6h+5h= 77

11h= 77

divide by 11

11h/11= 77/11

Cross out 11 and 11, divide by 11 and becomes 1*1*h= h

h= 7

Answer: h= 7

5 0

3 years ago

Suppose that you play the game with three different friends separately with the following results: Friend A chose scissors 100 t

Yanka [14]

Answer:

Friend A

$\hat p_A= \frac{100}{400}=0.25$

$z=\frac{0.25 -0.333}{\sqrt{\frac{0.333(1-0.333)}{400}}}\approx -3.47$

Friend B

$\hat p_B= \frac{20}{120}=0.167$

$z=\frac{0.167 -0.333}{\sqrt{\frac{0.333(1-0.333)}{120}}}\approx -3.80$

Friend C

$\hat p_C= \frac{65}{300}=0.217$

$z=\frac{0.217-0.333}{\sqrt{\frac{0.333(1-0.333)}{300}}}\approx -4.17$

So then the best solution for this case would be:

-3.47 (100 out of 400; 25%), -3.80 (20 out of 120; 16.7%), -4.17 (65 out of 300; 21.7%)

Step-by-step explanation:

Data given and notation

n represent the random sample taken

X represent the number of scissors selected for each friend

$\hat p=\frac{X}{n}$ estimated proportion of scissors selected for each friend

$p_o=\frac{1}{3}=0.333$ is the value that we want to test

$\alpha$ represent the significance level

z would represent the statistic (variable of interest)

$p_v$ represent the p value (variable of interest)

Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the proportion that the friend will pick scissors is less than 1/3 or 0.333, the system of hypothesis would be:

Null hypothesis: $p\geq 0.333$

Alternative hypothesis: $p < 0.333$

When we conduct a proportion test we need to use the z statistic, and the is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

The One-Sample Proportion Test is used to assess whether a population proportion $\hat p$ is significantly different from a hypothesized value $p_o$ .

Calculate the statistic

Since we have all the info requires we can replace in formula (1) like this:

Friend A

$\hat p_A= \frac{100}{400}=0.25$

$z=\frac{0.25 -0.333}{\sqrt{\frac{0.333(1-0.333)}{400}}}\approx -3.47$

Friend B

$\hat p_B= \frac{20}{120}=0.167$

$z=\frac{0.167 -0.333}{\sqrt{\frac{0.333(1-0.333)}{120}}}\approx -3.80$

Friend C

$\hat p_C= \frac{65}{300}=0.217$

$z=\frac{0.217-0.333}{\sqrt{\frac{0.333(1-0.333)}{300}}}\approx -4.17$

So then the best solution for this case would be:

-3.47 (100 out of 400; 25%), -3.80 (20 out of 120; 16.7%), -4.17 (65 out of 300; 21.7%)

6 0

4 years ago

What is the solution to the system of equations? Y=2x-3.5 X-2y=-14

GuDViN [60]

( 7, 10.5 )

Solution:

y = 2x - 3.5
x - 2 y = -14

Plug the first equation into the second equation like so;
x - 2 ( 2x - 3.5 ) = -14
Distribute -2 to 2x and -3.5

Your equation should now look like this:

x - 4x + 7 = -14
You want common numbers to be in the same side so you subtract 7 from both sides

x - 4x + 7 - 7 = -7 - 14

Now simplify both sides

x - 4x = -3x
- 7 - 14 = -21

In order to solve for x you need to get x by itself, so you divide both sides by -3

-3x / -3 = x
-21 / -3 = 7
x = 7

In order to solve for y you need to plug x in
(You can plug it into either equation, but I'm plugging it into the first one)

y = 2 (7) - 3.5
y = 14 - 3.5
y = 10.5

8 0

3 years ago

I will give brainliest to anyone who answers my question.

expeople1 [14]

What does it say? Could you take a better picture

3 0

4 years ago