Have a query? Ask a Tutor!!

Access to best educators and exclusive paper discussions

Offsite Campus Turito Championship

Can’t find what you’re looking for?

Our tutors are from top schools around the world, and they are waiting for you 24/7, anytime, anywhere.

Homework- One to One Solutions
Understand concepts to solve better
Get your doubts solved instantly

Maths-

General

Easy

Question

As of 2016, there were 118 known elements. These elements can be described with 10 classifications as summarized in the given table.

An element is a nonmetal if it is classified as a halogen, noble gas, or other nonmetal. The ratio of all nonmetals to all elements is 10 to k. What is the value of k ?

The correct answer is: 59

HINT :- Find the ratio of non metals to all elements and compare it with 10 to k
Explanation :
Given they are non mental if halogens(6),noble gases(7) or other non metals (7)
Step 1: finding total no. of non metals.
So total no. of non metals = 6+7+7 = 20.
Step 2: finding total no. of all elements
Given, that total no. of all elements is 118
Step 3: finding the ratio of non metals to all elements = $fraction numerator text total no.of non metals end text over denominator text total no.of all elements end text end fraction equals 20 over 118$
Step 4: Comparing it with $10 over k$
$10 over k equals 20 over 118 not stretchy rightwards double arrow k equals 118 space cross times space 10 over 20 equals 59$
$therefore$ k= 59

Related Questions to study

As of 2016, there were 118 known elements. These elements can be described with 10 classifications as summarized in the given table.

The percentage of the 10 classifications that have 11 or more elements is $p straight percent sign$ . What is the value of p ?

As of 2016, there were 118 known elements. These elements can be described with 10 classifications as summarized in the given table.

The percentage of the 10 classifications that have 11 or more elements is $p straight percent sign$ . What is the value of p ?

The expression 3xy(2y + 3) is equivalent to $b x y squared plus 9 x y$ , where b is a constant. What is the value of b ?

The expression 3xy(2y + 3) is equivalent to $b x y squared plus 9 x y$ , where b is a constant. What is the value of b ?

$table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row cell 5 x plus 3 y equals 31 end cell row cell 5 x minus 4 y equals 17 end cell end table$
If (x, y) is the solution to the given system of equations, what is the value of 10x - y ?

$table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row cell 5 x plus 3 y equals 31 end cell row cell 5 x minus 4 y equals 17 end cell end table$
If (x, y) is the solution to the given system of equations, what is the value of 10x - y ?

parallel

A one-digit positive integer will be chosen at random. What is the probability that the chosen integer will be greater than 7 ? (Express your answer as a fraction or decimal, not as a percent.)

A one-digit positive integer will be chosen at random. What is the probability that the chosen integer will be greater than 7 ? (Express your answer as a fraction or decimal, not as a percent.)

Rectangle A has an area of 64 square meters. The length and width of rectangle B are 3 times the corresponding length and width of rectangle A. What is the area, in square meters, of rectangle B ?

Rectangle A has an area of 64 square meters. The length and width of rectangle B are 3 times the corresponding length and width of rectangle A. What is the area, in square meters, of rectangle B ?

$left parenthesis x plus 3 right parenthesis squared plus left parenthesis y minus 7 right parenthesis squared equals 100$
In the xy-plane, the graph of the given equation is a circle. Which point (x , y) lies on the circle?

$left parenthesis x plus 3 right parenthesis squared plus left parenthesis y minus 7 right parenthesis squared equals 100$
In the xy-plane, the graph of the given equation is a circle. Which point (x , y) lies on the circle?

parallel

Which equation is the most appropriate exponential model for the data shown in the scatterplot?

Which equation is the most appropriate exponential model for the data shown in the scatterplot?

$S left parenthesis t right parenthesis equals 10 left parenthesis 0.5 right parenthesis to the power of t over 29 end exponent$
A sample of strontium-90 will radioactively decay to half the original quantity in approximately 29 years. The function above models the amount of strontium- 90 , in grams, that remains t years after a 10-gram sample starts to decay. Which of the following is the best interpretation of the number in the function?

$S left parenthesis t right parenthesis equals 10 left parenthesis 0.5 right parenthesis to the power of t over 29 end exponent$
A sample of strontium-90 will radioactively decay to half the original quantity in approximately 29 years. The function above models the amount of strontium- 90 , in grams, that remains t years after a 10-gram sample starts to decay. Which of the following is the best interpretation of the number in the function?

$y equals 1 half x plus 5$
One of the two equations in a linear system is given. The system has no solution. Which equation could be the second equation in this system?

$y equals 1 half x plus 5$
One of the two equations in a linear system is given. The system has no solution. Which equation could be the second equation in this system?

parallel

The histogram shows the distribution of book prices, in dollars, for the 27 books for sale at a store.

The first bar represents books with prices of less than $straight $ 5$ . The second bar represents books with prices of at least but less than $straight $ 10$ , and so on. In which interval will the median price of books for sale be included when the book that costs at least $straight $ 35$ but less than $straight $ 40$ is sold?

The histogram shows the distribution of book prices, in dollars, for the 27 books for sale at a store.

The first bar represents books with prices of less than $straight $ 5$ . The second bar represents books with prices of at least but less than $straight $ 10$ , and so on. In which interval will the median price of books for sale be included when the book that costs at least $straight $ 35$ but less than $straight $ 40$ is sold?

The bar graph shows the frequency of each data value in a certain data set. What is the minimum data value in the data set?

The bar graph shows the frequency of each data value in a certain data set. What is the minimum data value in the data set?

A potter is selling vases. The function gives the total profit p(x) , in dollars, the potter will receive if the vases are sold at a price of x dollars each. The graph of y = p(x) is shown.

What equation represents the relationship between the price of one vase and the profit?

A potter is selling vases. The function gives the total profit p(x) , in dollars, the potter will receive if the vases are sold at a price of x dollars each. The graph of y = p(x) is shown.

What equation represents the relationship between the price of one vase and the profit?

parallel

Data set R and data set S are represented in the dot plots shown. The mean for each data set is . Which of the following best describes the relationship between the standard deviation of data set R and the standard deviation of data set S ?

Data set R and data set S are represented in the dot plots shown. The mean for each data set is . Which of the following best describes the relationship between the standard deviation of data set R and the standard deviation of data set S ?

The graph of the line $y equals negative 1 half x plus 3$ in the xy-plane is translated 2 units to the right. What is the y-intercept of the translated line?

The graph of the line $y equals negative 1 half x plus 3$ in the xy-plane is translated 2 units to the right. What is the y-intercept of the translated line?

For a certain type of aircraft, the ratio of thrust, in newtons, to weight, in newtons, is 27 to 100 . If an aircraft has a weight of 3,730,000 newtons, which of the following is closest to the thrust, in newtons, of the aircraft?

For a certain type of aircraft, the ratio of thrust, in newtons, to weight, in newtons, is 27 to 100 . If an aircraft has a weight of 3,730,000 newtons, which of the following is closest to the thrust, in newtons, of the aircraft?

parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.