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3 years ago

Phil has read 70% of the total pages in a book he is reading for English class. Phil has

Mathematics

2 answers:

SVEN [57.7K]3 years ago

8 0

I the that the answer is 120 pages

Sonja [21]3 years ago

6 0

Answer:

let the total number of pages be '' p''

the equation -

70/ 100 x p= 84

transposing to solve the equation :

p= 84x 100/ 70

p = 120

therefore the book has 7 pages

HOPE IT HELPS....

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Steve wants to know what the average ACT scores of students graduated from his high school is. He randomly selected 25 students

beks73 [17]

Answer:

[a]. sample is 25 randomly selected students

also population is all students

[b]. (20.0, 23.0)

[c]. (8.8, 24.2)

Step-by-step explanation:

here is a step by step process to solving this, i hope you find this helpful.

1). The population is all students who graduated from his school while the

sample is 25 randomly selected students from the email list

2). given alpha = 1-0.86=0.14

critical z value(two tailed) for 86% confidence level is:

z=normsinv(0.07) or normsinv(0.93)=1.476

Margin of error=1.476*(4.6/SQRT(20))=1.5

86% confidence interval for population mean

=21.5+/-1.5

=(20.0, 23.0)

3). if population standard deviation is not known,we will use t distribution.

df=20-1=19

t*=tinv(0.05,19)=2.093

Margin of error=2.093*(5.7/sqrt(20))=2.7

95% confidence interval for population mean

=21.5+/-2.7

=(18.8, 24.2)

cheers i hope this helps!!!!

3 0

2 years ago

Graph 4x + y = 6x - 1<br> Show your work and explain the method used to determine the graph.

Maru [420]

See attachment for the graph of y = 2x - 1

<h3>How to graph the function?</h3>

The equation of the function is given as:

4x + y = 6x - 1

Subtract 4x from both sides of the equation

y = 2x - 1

This means that the equivalent equation of 4x + y = 6x - 1 is y = 2x - 1

So, we plot the graph of y = 2x - 1 to represent the equation 4x + y = 6x - 1

See attachment for the graph of y = 2x - 1

Read more about linear equations at

brainly.com/question/14323743

#SPJ1

3 0

1 year ago

8/3 x 9/7 or 8/3 x 9/4<br> Which is greater? How do you know?

Vinvika [58]

Well, let's multiply them!

8/3 * 9/7 = 72/21

8/3 x 9/4 = 72/12.

We know the one with the smallest denominator is larger if the numerator is the same. So that means

72/12 is larger.

5 0

3 years ago

A light bulb consumes 1440 watt hours per day. How many watt hours does it consume in 5 days and 18 hours

Maurinko [17]

Answer:

8,280 watt hours

Step-by-step explanation:

1440/24 = 60 watt hours per hour

5*24=120 hours in 5 days

120+18=138

138*60=8,280 watt hours

4 0

3 years ago

Someone help please!!!

miv72 [106K]

xis less than or equal to -3

3 0

2 years ago

Read 2 more answers