Estimate 275558+ 605131

Answers

Answer 1

Answer: 880689 is the exact answer

Answer 2

Answer: The estimate of 275558 + 605131 is 900000 because 275558 is rounded to 300000 and 605131 is rounded to 600000

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Determine the time needed to deliver 72 papers at rate of 9 papers in 18 minutes.

Answers

Answer: The required time needed to deliver 72 papers is 2 hours 24 minutes.

Step-by-step explanation: Given that 9 papers are delivered in 18 minutes.

We are to determine the time needed to deliver 72 papers.

We will be using the UNITARY method to solve the problem.

We have

Time needed to deliver 9 papers = 18 minutes.

So, time needed to deliver 1 minute will be

$(18)/(9)=2~\textup{minutes}.$

Therefore, time needed to deliver 72 papers is given by

$2*72=144~\textup{minutes}=(120)/(60)~\textup{hours},24~\textup{minutes}=2~\textup{hours}~24~\textup{minutes}.$

Thus, the required time needed to deliver 72 papers is 2 hours 24 minutes.

So you need to find out time. What you do is divide 72 by 9 to get 8. Once you get 8, you have to multiply it by 18. Your answer is then 144 Papers

Which expression is NOT equivalent to the other three?A) −9 − 7n + 16n
B) 9(n − 9)
C) n − 9 + 8n
D) 9n − 9

Answers

B be cause it would be 9n-81 while all the other are 9n-9

The answer is letter C) n-9+8n

Find the GCF of -10c ^2 d and 15cd^ 2
a)-5c2d2
b)-5cd
c)5cd

Answers

-10c ^2 d = 5cd(2c)
and
15cd^ 2 = 5cd(3d)

GCF =5cd

answer is c)5cd

Answer:

5cd is the answer!!

To make a music video, Juan plays 2 1/3 video clip 1 1/2 Times. How long is Juans music video?

Answers

1/3=2/6
1/2=3/6
2 2/6*1 3/6=

(2*1) + (2/6*3/6)=

3

Dustin and Melanie are playing a game, where two standard, six-sided number cubes are rolled, and the sum of their outcome is found. Each player gets a chance to guess the correct sum, and the player that guesses the correct sum wins. Dustin decides to guess a sum of six. Melanie decides to guess a sum of seven. Which player made the better decision

Answers

Answer:

Melanie.

Step-by-step explanation:

The possible ways of getting a 6 are (3,3), (2,4), (4,2), (1,5) and (5,1).

That is 5 ways.

The possible ways of getting a 7 are (1,6), (6,1), (5,2),( 2,5), (3, 4), (4,3).

That is 6 ways.

So Melanie made the better decision.

A microscope is set so it makes an object appear 4 x 10`2 times larger than its actual size. A virus has a diameter of of 2 x 10`-7 meter. how large will the diameter of the virus appear when it is viewed under the microscope.

Answers

$2\cdot10^(-7)\ meter\ \rightarrow\ \ the\ actual\ size\n\nscale=4\cdot10^2\n\nthe\ size\ under\ the \ microscope\ \n\n=4\cdot10^2\cdot2\cdot10^(-7)\ meter=8\cdot10^(-5)\ meter\n\nAns.\ the\ size\ under\ the \ microscope\ is\ 8\cdot10^(-5)\ meter.$

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