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SSSSS [86.1K]
3 years ago
14

Simplify the following: 6x - 6y + 4x - 3y - 5x + 7x

Mathematics
1 answer:
goblinko [34]3 years ago
3 0
12x-9y is the simplified answer
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At a local tech school, there are 6 math classes and each class has 27 students. The school pays for the book and calculators fo
umka21 [38]

The first step to solve this problem, you have to compute first for the total number of students:

6 math classes x 27 students per class = 162 students

Now, you know that there are 162 students all in all in the school. The next step is to compute for the total cost of both the book and the calculator per student.

$45.10 (Book) + $57.80 (Calculator) = $102.90 (total cost per student)

To compute for the total cost that the school will pay, you have to multiply the total cost per student to the number of students in school.

$102.90 per student x 162 students = $16,669.80

Therefore, the total cost the school will pay is $16,669.80.

6 0
3 years ago
Please help!!
Anni [7]
Data set 1 : the mean is (1+2+4+4+5+5+6+7+9+9+9+11) / 12 = 72/12 = 6

the MAD is :
1 - 6 = -5....|-5| = 5
2 - 6 = -4....|-4| = 4
4 - 6 = -2...|-2| = 2
4 - 6 = -2...|-2| = 2
5 - 6 = -1...|-1| = 1
5 - 6 = -1...|-1| = 1
6 - 6 = 0 ...| 0| = 0
7 - 6 = 1....|1| = 1
9 - 6 = 3...|3| = 3
9 - 6 = 3...|3| = 3
9 - 6 = 3...|3| = 3
11 - 6 = 5...|5| = 5

(5+4+2+2+1+1+0+1+3+3+3+5) / 12 = 30/12 = 2.5 <== the MAD

2nd data set :
the mean is (1+3+4+6+6+6+7+9+9+10+10+13) / 12 = 84/12 = 7

mad is :
1 - 7 = -6...| -6| = 6
3 - 7 = -4...|-4| = 4
4 - 7 = -3...|-3| = 3
6 - 7 = -1...|-1| = 1
6 - 7 = -1..|-1| = 1
6 - 7 = -1..|-1| = 1
7 - 7 = 0...|0| = 0
9 - 7 = 2...|2| = 2
9 - 7 = 2...|2| = 2
10 - 7 = 3..|3| = 3
10 - 7 = 3...|3| = 3
13 - 7 = 6...|6| = 6

(6+4+3+1+1+1+0+2+2+3+3+6) / 12 = 32/12 = 2.67 <== the MAD

the difference of the means is 1. This value is less then half of the mean absolute deviation of either data set. <== ur answer


8 0
3 years ago
Read 2 more answers
8 minutes after midnight please write this in Analog format ​
tia_tia [17]

Answer:

00h08

Step-by-step explanation:

eight minutes passed twelve

4 0
3 years ago
Read 2 more answers
The volume of a cylinder is 81 pi in^3 and the height of the cylinder is 1 in. What is the radius of the​ cylinder
ladessa [460]

Answer:

18/20π

Step-by-step explanation:

81π ÷ 1 = 81π

81π ÷2 = 18/20π

You do this because the radius is half of the diameter and you need to get rid of the hight by dividing it from the volume.

7 0
3 years ago
Any suggestions on which choice is the best?
melamori03 [73]
The correct answer is A i’m pretty sure
4 0
2 years ago
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