Answer:
Short-response question = 20.
Step-by-step explanation:
Let x be number of short response questions and y be the number of essay questions.
We have been given that there are 22 questions that are worth 100 points in total. Each short-response question is worth 4 points, and each essay question is worth 10 points. Using our given information we can form a system of equations as:
Now we will solve our system of equations using substitution method.
From equation 1 we will get,
Upon substituting in equation 2 we will get,
Therefore, there are 20 short-response questions on the exam.
Answer:
216
Step-by-step explanation:
you have to multiply it by 6
They are supplementary so they add up to 180
The equation would be x+96+5x = 180
Combine the like terms.
6x+96 = 180
Subtract 96 on both sides.
6x=84
Divide both sides by 6.
x=14
Answer:
The mean of the samples is 21
Step-by-step explanation:
Mean is defined as the average sum of numbers i.e total sum of given numbers divided by the total number.
Given the randomly selected numbers as shown;
7, 100, 1, 3, 7, 10, 15, 12, 17, 38
Total sum of numbers = 7+ 100 + 1 + 3 + 7 + 10 + 15 + 12 + 17 + 38
= 210
Total numbers given = 10
Mean = 210/10
Mean = 21
Your answer would be C because you have to do B^2- 4(A)(B)
the then u have to plug in and you will get C
