Just listen to ur teacher
You will have to add 25 plus 37 then u will need to subtract you answer by 55 and that will give you your answer hope this would help!
Answer: d. 7 and 1/2 hours
Step-by-step explanation:
Given : The time taken by Ana and Beth do a job together = 3 hours
Time taken by Ana to do a job alone = 5 hours
Let t be the time taken by Beth to do a job .
Then, According to the question ,we have
i.e. Time taken by Beth to do a job =
Hence, the time taken by Beth to do a job alone = 7 and 1/2 hours
Estimate: 6 5/6 rounds to 7 and 1 1/5 rounds to 1 so the estimate is 7/1 which is 7
Find: make the terms both improper fractions: 41/6 and 6/5
Flip the second term and multiply: 41/6 * 5/6
The answer is 205/36