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MrRa [10]
3 years ago
6

Use the x-coordinates A and C to calculate AC without counting

Mathematics
1 answer:
alexandr1967 [171]3 years ago
3 0
21 its 21 because it is 21
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There are 45 male teachers and 75 female teachersin a school. Find the percentage of male teachers, female teachers in the schoo
Zielflug [23.3K]

Answer:

37.5% are male

62.5% are female

Step-by-step explanation:

in total 120 teachers (45 male+75 female)

therefore:

for male

120 - 100%

45 - x%  (we need to find x)

by using the butterfly method (or cross multiply) we get:

120x=100*45

x=4500/120=37.5% (male teachers)

we do the same for female but instead of using 45 we will use 75(the quantity of female theachers in school)

120x=100*75

x=7500/120=62.5%

5 0
3 years ago
A finance magazine did a survey and found that the average American family spends $1,600 on a summer vacation. If the distributi
Andre45 [30]

Answer:

<h2> $1945</h2>

Step-by-step explanation:

Let X be the normal distribution

Kindly find attached a detailed annotation of the solution to the problem.

in the attached document, we found the value that corresponds to  80th percentile, hence we found the value such that the probability that the variable x is lower than this value is 0.8.

Also, from the calculation, we found that the value which corresponds to the 80th percentile is $1945

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3 years ago
More than $70 billion is spent each year in the drive-thru lanes of America’s fast-food restaurants. Having quick, accurate, and
artcher [175]

Answer:

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Step-by-step explanation:

answers are in the attachment below

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3 years ago
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Answer:

B he used the incorrect formula for the volume of the prism

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3 years ago
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Determine what type of model best fits the given situation: Every day, half a bacteria population dies.
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Step-by-step explanation:

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