Answer:
- Student cannot determine proportionality because there is no y-intercept.
- Table and graph do not match
(Student does not realize they are based on two different people)
- Student computes x/y and not y/x (Ex. 3/27 or 2/18)
Step-by-step explanation:
-May not be able to determine Unit rate because (1, r) does not exist on the table.
-May answer “18” because it is the first point on the table.
-Unable to determine relationship between x and y values
Answer:
10.55% probability
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
The order in which the CDs are chosen is not important. So we use the combinations formula to solve this question.
1 Bach CD, from a set of 4.
1 Beethoven CD, from a set of 6.
1 Brahms CD, from a set of 3.
1 Handel CD, from a set of 2.
So, D=144
4 CDs from a set of 4+6+3+2 = 15.
So, T= 1365
p= D/T= 144/1365 = 0.1055
10.55% probability that she will choose one by each composer
The answer is B. 5P5 x 20P15.
This is because to make the second grade students to sit in the first row we have 5 seats and 5 students so we will permute the 5 students to those 5 seats. So 5P5.
Now we are left with 20 seats and 15 first grade students so we can simply permute those 15 students into those 20 seats. So 20P15.
Finally using the counting rule principle we will multiply both of these so 5P5 x 20P15.
115 times 0.8 because he already spent 0.2. 115 x 0.8 = 92
So $92 left to spend
Hope this helped
Answer:
im stuck on this to
Step-by-step explanation: