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m_a_m_a [10]
1 year ago
15

If mr. douty goes to the store and purchases 5 equally priced items for a total of $172.45, how much did each item cost individu

ally?
Mathematics
1 answer:
natima [27]1 year ago
5 0

Answer:

$34.49

Step-by-step explanation:

To figure out this problem, you would need to divide the total price by the total amount of items you are buying

In this case it is...

172.45/5

=34.49

So the price of each item is approx. $34.49

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The formula for rate is r=d/t . Solve for d.
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I hope this helps you




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3 years ago
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A group of 59 randomly selected students have a mean score of 29.5 with a standard deviation of 5.2 on a placement test. What is
BigorU [14]

Answer:

29.5+/-1.11

= ( 28.39, 30.61)

Therefore, the 90% confidence interval (a,b) =( 28.39, 30.61)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 29.5

Standard deviation r = 5.2

Number of samples n = 59

Confidence interval = 90%

z-value (at 90% confidence) = 1.645

Substituting the values we have;

29.5+/-1.645(5.2/√59)

29.5+/-1.645(0.676982337100)

29.5+/-1.113635944529

29.5+/-1.11

= ( 28.39, 30.61)

Therefore, the 90% confidence interval (a,b) =( 28.39, 30.61)

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3 years ago
PLEASE HELP TENTH GRADE GEOMETRY
MArishka [77]

Answer:

answer is 19............

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2 years ago
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What is the answer and formula for 7f+5=68
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