Question

Mia spent 30 minutes answering the math questions on the exam. This was Three-fifths of the total amount of time allotted for this section of the exam. To determine the total amount of time allotted for this section of the exam, Mia set up and solved the equation as shown below.
Three-fifths x = 30. Five-thirds (three-fifths) x = 30 (three-fifths). X = 18.
Which best describes the error that Mia made?
Mia did not use the correct equation to model the given information.
Mia should have multiplied both sides of the equation by Five-thirds.
The product of 30 (three-fifths) is not equal to 18.
The product of Five-thirds and StartFraction 1 over 30 EndFraction should have been the value of x.

Answer 1

Answer:

x×3/5=30

3x/5=30

3x=5×30

3x=150

x=150/3

x=50