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Sedaia [141]
2 years ago
13

Jerry is a judge he hears 5 cases every 2 3/8 per hours Jerry hears case at a constant rate How many cases does he hear per hour

Mathematics
2 answers:
Nataliya [291]2 years ago
5 0
Around 2 I think... 2.10 is what I got 
sveticcg [70]2 years ago
5 0

Answer:

\frac{40}{19}\frac{cases}{hour} or 2\frac{2}{19}\frac{cases}{hour}

Step-by-step explanation:

we know that

Jerry hears 5 cases every 2\frac{3}{8} hours

so

To find how many cases does he hear per hour, divide 5 cases by 2\frac{3}{8} hours

convert mixed number to an improper fraction first

2\frac{3}{8}=\frac{2*8+3}{8}=\frac{19}{8}

\frac{5}{(19/8)} =\frac{40}{19}\frac{cases}{hour}

convert to mixed number

\frac{40}{19}\frac{cases}{hour}=\frac{38}{19}+\frac{2}{19}=2\frac{2}{19}\frac{cases}{hour}

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strojnjashka [21]
\frac{100}{137.5} =  \frac{1}{1.375}  I simply divided by 100 and moved the decimal two places to the left.
4 0
2 years ago
Read the passage.
alexandr1967 [171]

Answer:

D sentence 5

Step-by-step explanation:

6 0
2 years ago
A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba
Ahat [919]

Answer:

z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68  

Step-by-step explanation:

Information provided

n=100 represent the random sample taken

X=21 represent the number of bags overfilled

\hat p=\frac{21}{100}=0.21 estimated proportion of overfilled bags

p_o=0.15 is the value that we want to test

z would represent the statistic

Hypothesis

We need to conduct a hypothesis in order to test if the true proportion of overfilled bags is higher than 0.15.:  

Null hypothesis:p =0.7  

Alternative hypothesis:p > 0.15  

The statistic for this case is:

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

And replacing the info given we got:

z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68  

5 0
2 years ago
Logan can read at a rate of 2/3 page per minute. At that rate, how many pages can he read in 2 hours?
Anon25 [30]

Answer:

240- 360

Step-by-step explanation:

You have to find out how many minutes in an hour which is 60. Then multiply it by 2 for 2 hours to get 120. Then you multiply 2x120 to get 240. Then you multiply 3x120 to get 360.

I'm not sure if this is correct but this is how I would go about it. :)

7 0
2 years ago
What is the probability that a point chosen at random in the triangle is also in the blue square? A blue square inside of an uns
Dmitrij [34]

Answer:

One-third

Step-by-step explanation:

we know that

The probability that a point chosen at random in the triangle is also in the blue square is equal to divide the area of the square by the area of triangle

step 1

Determine the area of triangle

A=\frac{1}{2}(9)(6)=27\ in^2

step 2

Determine the area of the square

A=(3^2)=9\ in^2

step 3

Determine the probability

P=\frac{9}{27}

simplify

P=\frac{1}{3}

therefore

One-third

5 0
2 years ago
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