328,291 views
15 votes
15 votes
Evaluate the expression for the given variable.9 - k ÷ 3/4 k=2/3

User Praful Argiddi
by
2.7k points

1 Answer

17 votes
17 votes

We are given the following expression:


9-k/(3)/(4)

We are also given that k is equal to 2/3. So, we can substitute that into the expression:


9-(2)/(3)/(3)/(4)

Due to order of operations, we have to do the division first, and then do the subtraction. To do division with fractions, we keep the first fraction the same and take the reciprocal of the second fraction. Then, we can multiply the two fractions. Let's do that:


9-((2)/(3)/(3)/(4))=9-((2)/(3)*(4)/(3))=9-(8)/(9)

Now, we can do the subtraction:


9-(8)/(9)=(81)/(9)-(8)/(9)=(73)/(9)

Therefore, our answer is 73/9

User Sergey Kuznetsov
by
2.9k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.