In a science test, Jamie solved 42 correct and 18 incorrect answers. What is the percentage of correct questions and how did you get it?

Answer:70%

Step-by-step explanation: make a proportion: 42 = x

60 = 100

(it think)

First you add both together to find the total number of answers which is 60. You make a fraction of how many correct over total number, getting 42/60. You then simplify it to make it 21/30. If you divide 21/30, you will get. 7. The last step is to take the decimal and move it 2 places back to make it a percentage. It will become 70%, making that your answer.