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Masja [62]
3 years ago
6

The community center has a pottery class each month. Each student pays $15 for the class and $27 for materials. This month the p

ottery class brought in a total of $714. How many students are in the class this month?
please answerrrrrr
Mathematics
2 answers:
Nastasia [14]3 years ago
5 0

Answer:

17

Step-by-step explanation:

Let the number of students in pottery class be x

Price each student pays for the class = \$15

Price each student pays for the material = \$27

Total earning of pottery class = \$714

We can write this in expression as-

15x + 27x = 714

Solving the expression we get15x + 27x = 714\\42x = 714\\x = \frac{714}{42} \\x = 17

There are total 17 students in the class this month

Dominik [7]3 years ago
3 0
If you add $15 + $27 because that's how much it costs for each student, you get $42. Then you divide $714 by $42, you get 17 and that's how many students are in the class this month.
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Y=6x-3 function rule
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f(x) = 6x - 3

Step-by-step explanation:

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The equation for a parabola has the form y = ax^2 + bz + c, where a, b, and c are constants and aメ0. Find an equation for the pa
vova2212 [387]

Answer:

a = 2, b = -9, c = 3

Step-by-step explanation:

Replacing x, y values of the points in the equation y = a*x^2 + b*x +c give the following:  

(-1,14)

14 = a*(-1)^2 + b*(-1) + c  

(2,-7)

-7 = a*2^2 + b*2 + c  

(5, 8)  

8 = a*5^2 + b*5 + c  

Rearranging:

a - b + c = 14  

4*a + 2*b + c = -7

25*a + 5*b + c = 8

This is a linear system of equations with 3 equations and 3 unknows. In matrix notation the system is A*x = b whith:

A =

1    -1  1

4    2  1

25  5  1

x =

a  

b

c

b =

14

-7

8

Solving A*x = b gives x = Inv(A)*b, where Inv(A) is the inverse matrix of A. From calculation software (I used Excel) you get:

inv(A) =  

0.055555556 -0.111111111   0.055555556

-0.388888889 0.444444444   -0.055555556

0.555555556 0.555555556 -0.111111111

inv(A)*b

2

-9

3

So, a = 2, b = -9, c = 3

5 0
3 years ago
Find (-6y-2)+5(3+2.5y)
valentina_108 [34]

The answer is 26-37y over 2. I worked it out and i hope it is very helpful. I know a lot of struggle with math so hope it helps!

4 0
3 years ago
Read 2 more answers
Is -28 greater than or less than -162
vivado [14]

Answer:

Any number which is on left side on the line number is less than the number which is on right hand side relative to that number.

As -28 is on the right hand side of the line number, and -162 is heading towards left hand side relative to -28.

Therefore, -28 is greater than -162.

Step-by-step explanation:

To determine:

Is -28 greater than or less than -162?

Solution Steps:

  • In mathematics, a number line is considered to be a straight line with numbers placed at equal intervals along its length.
  • A number line could be extended infinitely in any direction i..e -∞ to +∞.
  • A number is usually represented horizontally.

Any number which is on left side on the line number is less than the number which is on right hand side relative to that number.

As -28 is on the right hand side of the line number, and -162 is heading towards left hand side relative to -28.

Therefore, -28 is greater than -162.

In other words,

-28>-162\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:\mathrm{True\:for\:all}\:x\:\\ \:\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:\infty \:\right)\end{bmatrix}

Keywords: number line, less than, greater than

Learn more about number line from brainly.com/question/12153324

#learnwithBrainly

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pychu [463]

Answer:

other person is correct

 

Step-by-step explanation:

3 0
3 years ago
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