To find the reciprocal of a fraction, you just need to "flip" it. To check your work, you multiply the fraction and the reciprocal to get 1.
the reciprocal if 2/3 is 3/2
The answer is B
1/5 thats the answer
i hope this help you
Answer:
So the number of total combinations is 35.
Step-by-step explanation:
We know that Ellen must take 4 courses this semester. She has a list of 3 math courses and 4 science courses.
Therefore, she have total 7 courses.
So, we calculate the number of combinations to choose 4 out of 7 courses.
We get:

So the number of total combinations is 35.
HI THIS IS VERY HARD CAN U GIVE ME MORE TIME
B is your answer! let me know if you need help!