If (I(t)=3t+12), what is (I(t)) at (t=6)?
Answer and explanation
Correct answer: 30
Given \(I(t)=3t+12\), substitute \(t=6\): \(I(6)=3\times6+12=18+12=30\). Therefore, 30 is the correct option. The value 24 may result from an incorrect addition after multiplication. Exam tip: substitute the given value for the variable, then follow the order of operations.
Frequently asked questions
What is the correct answer to this question?
30
Why is this the correct answer?
Given \(I(t)=3t+12\), substitute \(t=6\): \(I(6)=3\times6+12=18+12=30\). Therefore, 30 is the correct option. The value 24 may result from an incorrect addition after multiplication. Exam tip: substitute the given value for the variable, then follow the order of operations.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Linear growth and decay.
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