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frutty [35]
2 years ago
15

HELP Pre-algebra Not understanding :/

Mathematics
1 answer:
Contact [7]2 years ago
7 0
The answer will end up being c
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A paper company needs to ship paper to a large printing business. The paper will be shipped in small boxes and large boxes. The
snow_tiger [21]

Answer: the number of small boxes shipped is 14 and the number of large boxes shipped is 12.

Step-by-step explanation:

Let x represent the number of small boxes shipped and

Let y represent the number of large boxes shipped.

A total of 26 boxes of paper were shipped. This means that

x + y = 26

The volume of each small box is 7 cubic feet and the volume of each large box is 13 cubic feet. The combined volume of small and large boxes shipped is

7x + 13y = 254 - - - - - - - - - - - - - - - -1

Substituting x = 26 - y into equation 1, it becomes

7(26 - y) + 13y = 254

182 - 7y + 13y = 254

- 7y + 13y = 254 - 182

6y = 72

y = 72/6 = 12

x = 26 - y = 26 - 12

x = 14

6 0
3 years ago
The image below shows where coal deposits are found in the United States. Explain how these coal deposits are energy sinks and c
Rudik [331]

Answer:

It is a little bit trivial:

As we know:

Energy sink: is anything that uses energy.

Energy source: is anything that produces energy.

How the caol deposits can be energy sinks? well, you want to extract the coal from those deposits, and to do it, you need to "use energy" (the type of energy can depend on the extraction method, for example, if you use a pickaxe to extract the coal, you are using mechanical energy)

These coals are potential energy sources because coal is an energy source, potential means that, given some circumstances, something can transform into other things.

So potential energy source in this situation means that those coal deposits can be potential energy when we extract the coal and use it as an energy source.

3 0
3 years ago
This Measure of Center gives you the average number.<br><br> Mean<br> Median<br> Mode
Darina [25.2K]
I don’t understand this but:

The mean is the average of all the numbers combined

the median is the number centered directly in the middle with the same number of numbers on both sides of the number in the middle

The mode is how many times a number appears
3 0
3 years ago
Read 2 more answers
Katrina wants to estimate the proportion of adults who read at least 10 books last year. to do​ so, she obtains a simple random
Vaselesa [24]
E=Z*sqrt (p(1-p)/N), where E= error margin, p=proportion, N=sample size

Katrina's margin error at 85% confidence interval: E=1.96*sqrt (p(1-p)/100) = 0.196 sqrt (1(1-p))

Mathew's margin error at 99% confidence interval: E= 2.58*sqrt (p(1-p)/400) = 0.129 sqrt (p(1-p))

Since both obtained same estimate of proportion (that is, value of p), it can be seen that Mathew's estimate will have a small error (That is, 0.129 is smaller than 0.196). This can be attributed to larger sample size although a wider confidence (99%) interval was considered.
3 0
3 years ago
What is the relationship between .04 and .004
IRINA_888 [86]
They are both decimals.

But 0.04 > 0.004.
4 0
3 years ago
Read 2 more answers
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