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Alona [7]
2 years ago
7

An oil company fills 1 over 10 of a tank in 1 over 5 hour. At this rate, which expression can be used to determine how long it w

ill take for the tank to fill completely?
A. 1 over 5 ⋅ 10 hours
B. 1 over 10 ⋅ 5 hours
C. 1 over 5 ⋅ 1 over 10 hour
D. 5 ⋅ 10 hours
Mathematics
2 answers:
sergeinik [125]2 years ago
8 0
Hey there, Natethegreat13!

The correct answer should be A
If it takes \frac{1}{5} hours (which is 24 minutes) to fill one tenth of the tank, then to fill 10 tanks, it would be \frac{1}{5} * 10 and you get a total of 2 hours to fill the tank.

Thank you for using Brainly.
See you soon!
Paladinen [302]2 years ago
7 0

If 1/10 of the tank is filled in 1/5 of an hour, then multiplying both of those by 5 you would get 5/10 of a tank being filled in a full hour, or answer choice A. Hope this helps! By the way, sorry for the incorrect answer a couple years ago :)

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Gladys has just purchased a new home. The house was priced at $105,000,
sp2606 [1]

Answer: the answer is C

Step-by-step explanation: AP3X

6 0
3 years ago
When data are collected using a quantitative, ratio variable, what is true about a frequency distribution that summarizes the da
bazaltina [42]

When data are collected using a quantitative, ratio variable, a frequency distribution that summarizes the data is the upper and lower class limits must be calculated is the correct answer.

In this question,

A frequency distribution is used to display the number of observations within a particular interval. It groups data into categories, and records the number of observations in each category.

Frequency distributions are visual displays that organize and present frequency counts so that the information can be interpreted more easily. It is a graphical or tabular representation of data that shows the number of observations within a given value.

It provides the information of the number of occurrences (frequency) of distinct values distributed within a given period of time or interval, in a list, table, or graphical representation.

From the definition, when data are collected using a quantitative, ratio variable, a frequency distribution that summarizes the data is the upper and lower class limits must be calculated is the correct answer.

Learn more about frequency distribution here

brainly.com/question/14866043

#SPJ4

The complete question is as follows,

When data are collected using a quantitative, ratio variable, what is true about a frequency distribution that summarizes the data?

A. A pie chart can be used to summarize the data, B. Upper and lower class limits must be calculated C. Number of classes is equal to the number of variable's values. D. The "5 to the k rule" can be applied.

6 0
1 year ago
Find the surface area of the figure below.
gayaneshka [121]

Answer:

261 cm²

Step-by-step explanation:

To find the surface area of a square pyramid, you must first recognize all of the shapes.

There are four triangles and one square.

  • To find the area of a square, multiply the side by itself twice.
  • To find the area of a triangle, multiply the base and the height, then multiply the product by 1/2.

The triangles have a base of 9 and a height of 10.

9*10=90

Multiply the product by 1/2.

90*1/2 = 45

There are four triangles.

45*4=180

The area of all three triangles is 180 centimeters; the area of a single triangle is 45 centimeters.

There square has sides of 9 centimeters.

9*9=81

The area of the square is 81 centimeters.

Lastly, we add the areas of the shapes.

45+45+45+45+81 = 261.

Therefore, the surface area of this square prism is 261 cm².

You can use this layout to find the surface area of a square pyramid.

6 0
2 years ago
Solve this equation for x. Round your answer to<br>the nearest hundredth.<br>7 = In(x + 5)<br>​
oksian1 [2.3K]

Answer:

x ≈ 1091.63

Step-by-step explanation:

Using the rule of logarithms

log_{b} x = n ⇔ x = b^{n}

note that ln x is to the base e

Given

ln(x + 5) = 7, then

x + 5 = e^{7} ( subtract 5 from both sides )

x = e^{7} - 5 ≈ 1091.63 ( nearest hundredth )

3 0
2 years ago
Casey ran out of time while taking a multiple-choice test and plans to guess on the last 101010 questions. Each question has 555
Soloha48 [4]

Answer:

There is a 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

Step-by-step explanation:

For each question, there are only two possible outcomes. Either it is correct, or it is not. This means that we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which  is the number of different combinatios of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.

In this problem we have that:

There are four questions, so n = 4.

Each question has 5 options, one of which is correct. So  

What is the probability that he answers exactly 1 question correctly in the last 4 questions?

This is  

There is a 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

7 0
2 years ago
Read 2 more answers
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