Mad and dirty is the attitude
<h2>Answer with Explanation </h2>
To discover average you include the scores from each subject and afterward separate them by what number of various numbers you have. An example is shown below, like if there were three subjects who got different scores. The next step would be to add the score of all subjects.
Example
- 1+2+3=6
After adding the total sum will be divided by the number of students.
- 6/3=2
When you have the midpoints of all subjects over the 4 years, the one that is most noteworthy will be answer.
Answer:
3 groups of 5
Explanation:
if x is the number of groups of four, and y is the number of groups of five, then 4x +5y =39 (four students per group of four times the # of groups of four, and 5 students per group times the # of groups of five, which should equal the total amount of students, 39). also, x+y=9. (number of each type of group = 9 groups total).
then, use these two equations and solve for y, by "canceling out" x. there are many ways to do this, but i'm going to use subtraction.
4x-5y=39
x+y=9
you want to change the equation
x+y=9
into
4x+4y=36
by multiplying the whole equation by four. because in order to cancel out the x, you need it to equal zero. in the first equation, its 4x.
so its now
4x-5y =39 MINUS
4x+4y=36
___________
y=3
you can check your work because the remaining 6 groups of four (24 total students) plus the 3 groups of five (15 total students) adds up to equal 36
Answer:
180 texts
Explanation:
mutiply 92 by 0.10 and you'll get 9.2
So each text costs 10 cents.
