All categories

3 years ago

A copy machine makes 165 copies in three minutes and 45 seconds how many copies of them make per minute

Mathematics

2 answers:

NNADVOKAT [17]3 years ago

4 0

So we just divide 165 by 3.75 to get 44 copies per minute.

Nana76 [90]3 years ago

3 0

Hi!

So I would do this problem by dividing 165 copies by 3 minutes and 45 seconds; that's finding how many 3 minutes and 45 seconds go into 165, and results in how many copies are made in a minute.

Since 3 minutes and 45 seconds is in reality, 3 3/4 minutes, as there are 60 seconds in a minute, I would divide by 3 3/4, or 3.75.

165 / 3.75 = 44

So therefore, a copy machine makes 44 copies per minute.

You might be interested in

Enlist any five common social rules all kinds of society

Delvig [45]

Answer:Shake hands when you meet someone.Make direct eye contact with the person you are speaking with.Unless the movie theater is crowded, do not sit right next to someone.Do not stand close enough to a stranger to touch arms or hips.Cover your coughs.

Step-by-step explanation:trust me

8 0

3 years ago

Seven hundred fifteen divided by eight

ExtremeBDS [4]

Answer:

89.375 or 89.4 if rounded

Step-by-step explanation:

715 divided by 8 = 89.375

check this by doing 89.375 x 8

hope this helps

7 0

4 years ago

Read 2 more answers

Pleaseeeeeeeeeeeeeeeeeeeeee helppppppppppppppppp meeeeeeeeeeeeeeeeeeeeeeeeee

igomit [66]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Find x, when p(x) = -1,

Neporo4naja [7]

Answer:

positive or negative 4

Step-by-step explanation:

p(x) is another form of saying y. plug in -1 as the y value. then look where on the graph it touches the line

8 0

4 years ago

Based on the information from Harper's Index, 37 out of 100 adult Americans who did not attend college believe in extraterrestri

vazorg [7]

Answer: Yes, this indicate the proportion of adult americans that attended college and believe in extraterrestrials is higher than the proportion that did not attend college.

Step-by-step explanation:

Since we have given that

Hypothesis:

$H_0:p_1=p_2\\\\H_a:p_1>p_2$

n₁ = 100

x₁ = 37

So, $p_1=\dfrac{x_1}{n_1}=\dfrac{37}{100}=0.37$

n₂ = 100

x₂ =47

So, $p_2=\dfrac{47}{100}=0.47$

At 0.01 level of significance, z = 2.33

So, test statistic value would be

$z=\dfrac{p_1-p_2}{\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}}\\\\z=\dfrac{0.37-0.47}{\sqrt{\dfrac{0.37\times 0.63}{100}+\dfrac{0.47\times 0.53}{100}}}\\\\z=-1.44$

Since, 2.33>-1.44

Hence, we will reject the null hypothesis.

Therefore, Yes, this indicate the proportion of adult americans that attended college and believe in extraterrestrials is higher than the proportion that did not attend college

4 0

3 years ago