Answer:
9 : 1
Step-by-step explanation:
Let the correct answers be denoted by C.
Let the incorrect answers be denoted by I.
Given the following data;
Correct answers = 45 answers
Incorrect answers = 50 - 45 = 5 answers
Ratio of correct to incorrect answers;
C : I = 45 : 5
Dividing by 5, we have;
C : I = 9 : 1
Answer: 2c^2
Step by step explanation:
Add 2x to both sides,
3x+9=18
Subtract 9 from both sides. 3x=9
Divide both sides by 3.
x=3
<span>1/2 s = 15
Divide 1/2 on both sides
Final Answer: s = 30</span>
