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klio [65]
3 years ago
5

Samantha and Luis are attempting to determine the average number of library books that seventh-grade students check out at one t

ime. Samantha surveys every other seventh grade student leaving the library. She samples a total of 40 of the 200 seventh graders. Luis samples 30 of the 200 seventh grade students at random in the school cafeteria. Whose sample is the most random?
Mathematics
2 answers:
postnew [5]3 years ago
6 0

Answer:

A

Step-by-step explanation:

Luis because the sample is taken from the population of all seventh graders.

Dvinal [7]3 years ago
5 0

Answer:

The answer is A your welcome ;)

Step-by-step explanation:

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Explain the importance of factoring.
ivolga24 [154]

Answer:

Factoring is a useful skill in real life. Common applications include: dividing something into equal pieces, exchanging money, comparing prices, understanding time, and making calculations during travel.

Sorry if this is a little wordy, I can get carried away with this sort of thing

anyway, hope this helped and answered your question :)

5 0
3 years ago
How many times greater is 8 x 10^-2 than 2x10^-6
umka21 [38]

Answer:

40,000

Step-by-step explanation:

You want to start with the exponent and then multiply afterward in both of the equations.

8 x 10^-2:

10^-2 = 0.01

0.01 x 8 = 0.08

2 x 10^-6:

10^-6 = 0.000001

0.000001 x 2 = 0.000002

Obviously, you can see the relationship between 8 and 2 in the division.  Now, you just divide 0.08 by 0.000002 and you get 40,000.

4 0
2 years ago
A garden table and a bench cost $653 combined. The garden table cost $97 less than the bench. what is the cost of the bench?
SIZIF [17.4K]

T is the cost of the table. B is the cost of a bench.

b+t=652
b+98=t

t-98+t=652
2t=554
t=277
b=375

Hope this helps!

8 0
3 years ago
45% of a number is 180. Find the number
KonstantinChe [14]

Answer:

81

Step-by-step explanation:

The term "of" can be translated to multiplication in problems like this.

So it's essentially saying multiply 45% to 180 and give me the result.

45% can be written as 45/100 in fractions (45 percent, where cent means 100 and per means division). 45/100 can be written as 0.45 in decimal form.

Now the problem reads 0.45 X 180. Using a calculator, we can solve this and the result comes out to be 81

4 0
3 years ago
Read 2 more answers
Use compatible numbers to estimate the quotient of 776÷28
kiruha [24]
The answer to ur division problem would be 27.6785714286<span>
</span>
4 0
3 years ago
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