Answer:
The minus sign between the two fractions was not distributed correctly.
Step-by-step explanation:
The error made in this solution of rational fractions' subtraction is that the minus sign between the two terms will change the signs of numerator of second fraction so the numerator in the answer will be 3.
The correct solution is:
Hence,
The error was in the last step of subtraction.
15 / 20 = 0.75. The answer is 0.75
They do all EXCEPT D, but the best answer is A because one can solve the system of equations this way
The probability of not drawing a red marble is 50%
Answer: It should be 74.5875
Step-by-step explanation: If you did 0.35*55.25= you should get a number then if you add that with the discounted price, $55.25, you should get 74.5875