Question

The grade you make on your exam varies directly with the number of correct answers you get on the exam.Answering 15 questions correctly will give you a grade of 75 what is the. Constant of variation

Answer 1

The grade you make on your exam varies directly with the number of correct answers. The constant of variation is 5

Solution:

Given, The grade you make on your exam varies directly with the number of correct answers you get on the exam.

Answering 15 questions correctly will give you a grade of 75 what is the.

We have to find what is the Constant of variation.

Now, according to the given information, grade  number of correct answer

Then, grade = c x number of correct answers, where c is constant of variation.

Now, substitute grade = 75 and number of correct answers = 15

`\text { Then, } 75=c * 15 \rightarrow c=(75)/(15)=5`

Hence, the constant of variation is 5