Answer:
amount of time it'll take Henry and Louisa = 6/5 hours
Step-by-step explanation:
Number of hours it takes Henry = 2hrs
Henry's one hour work = 1/2
Number of hours it takes Louisa = 3 hrs
Louisa's one hour work = 1/3
Hence Louisa and Henry one hour work = 1/2+1/3 = 5/6
Hence amount of time it'll take Henry and Louisa = 6/5 hours
Answer:
66.6 or about 67 is the average rate of change
Answer:
4/36 or 1/9
Step-by-step explanation:
In order to get a sum of 9 with two dice, you would have to roll the pairs 4 & 5, 5 & 4, 3 & 6, or 6 & 3. Since you have two dice there are 36 different combinations (6 faces*6 faces) you could roll, but only 4 of them would give you a sum of 9. That makes the probability 4/36 or 1/9.