Answer: LAST OPTION.
Step-by-step explanation:
You have the following function that represents the amount of money each girl spent:
Where "t" is the number of hours they were shopping.
You know that each girl went shopping for 2 hours.
Then, you can substitute into the given function:
Evaluating, you get that the amount of money spent by one of these girls in 2 hours, is:
Therefore, the total amount of money Kayla and her best friend Cristina spent together is:
This matches with the last option.
Answer:
0.32
Step-by-step explanation:
P(B|A) = P(A∩B) / P(A)
0.25 = 0.08 / P(A)
P(A) = 0.32
Answer:
Add all sides together, then divide it by 3. The answer is...
Step-by-step explanation:
54+80+64= 198 DIVIDED BY 3 = 66 so
66 = X
The total number of students in 8th grade will be the sum of number of all students shown in the Venn Diagram, as the students in 8th class are the Universal set in this case.
So, total number of students in grade 8 = 34 + 14 + 44 + 15 = 107
Number of students who are taking either of these subjects as elective are shown in the colored regions and are equal to = 34 + 14 + 44 = 92
Probability of a student chosen at random taking either of these subjects as an elective = Student taking these courses as elective / Total number of students
So,
Probability of a student chosen at random taking either of these subjects as an elective = 92/107
Thus option B gives the correct answer.