Excellence Middle School charges $9.00 for students from all grade levels to attend the school dance. If s represents the number of seventh-grade students who came to the dance and g represents the number of eighth-grade students at the dance, which expression best represents the total amount of money collected for attendance at the dance?

a--9s + g
b--s + 9g
c--18(s + g)
d--9(s + g)

Answer:

(4x-5y)(4x+5y)

Step-by-step explanation:

Answer:

B 53.

Step-by-step explanation:

180-79=101

101+6x+13=180

-114              -114

6x=66

x=11

3(11)+20

33+20

53

Answer:

The line is ;

4y = -x + 56

or

y = -x/4 + 14

Step-by-step explanation:

Generally, the equation of a straight line is;

y = mx + c

where m represents the slope

so for y = 4x - 6

The slope is 4

If two lines are perpendicular, the product of their slopes is -1

So for the second line, the slope will be -1/4

The equation in the point slope format will be ;

y-12 = -1/4(x-8)

y-12 = -x/4 + 2

Multiply through by 4

4y-48 = -x + 8

4y = -x + 8 + 48

4y = - x + 56

The equation of the line that passes through (8, 12) and is perpendicular to y = 4x - 6 is:

[tex]y - 12 = -\frac{1}{4} (x - 8)[/tex] (point-slope form)

or

[tex]y = -\frac{1}{4}x + 14[/tex] (slope-intercept form)

Recall:

Given:

y = 4x - 6

To write the equation of a line that passes through (8, 12) and is also perpendicular to y = 4x - 6, substitute m = -1/4 and (8, 12) into

y - b = m(x - a)

[tex]y - 12 = -\frac{1}{4} (x - 8)[/tex] (point-slope form)

Rewrite in slope-intercept form

[tex]y - 12 = -\frac{1}{4} (x - 8)\\\\y - 12 = -\frac{1}{4}x + 2\\\\y = -\frac{1}{4}x + 2 + 12\\\\y = -\frac{1}{4}x + 14[/tex](point-slope form)

Therefore, the equation of the line that passes through (8, 12) and is perpendicular to y = 4x - 6 is:

[tex]y - 12 = -\frac{1}{4} (x - 8)[/tex] (point-slope form)

or

[tex]y = -\frac{1}{4}x + 14[/tex] (slope-intercept form)

Learn more here:

https://brainly.com/question/16732089

Answer:

hi

Step-by-step explanation:

bye

Answer:

b. 408

Step-by-step explanation:

did the work

give brainliest please

Answer:4,5

Sorry for taking a spot

Answer:

(-4,-5)

Step-by-step explanation:

Start at the point and move 7 boxes to the right and 4 boxes up. Otherwise, the point it (-3,1) so just add (7, 4). -3 plus 7 equals 4. 1 plus 4 equals 5.

180 formula is (-x,-y). The answer is (-4,-5)

Answer:

7

Step-by-step explanation:

8+4=2(x-1) (Given)

12=2x-2 (Distribute and simplify)

14=2x (Addition Property Of Equality)

7=x (Division Property Of Equality)

Answer:

6/8

Step-by-step explanation:

I answered this math question on edge and 100%.

Answer:

37.5

Step-by-step explanation:

1=15 so 2=30 plus half of 15 (7.5) add, 37.5! :) Hope this helped! Have a good day! ;)

Answer:

The correct answer is B

Step-by-step explanation:

I know this is the answer because I took the test and got it right.

Answer:

Helen has $35 and Brian has $7

Step-by-step explanation:

5b + b = 42

6b = 42

/6 /6

b = 7

7(5) + 7 = 42

35 + 7 = 42

42=42

D. 90 counterclockwise rotation, then reflection over x-axis

Answer:

69 students were advanced and 184 were regular

Step-by-step explanation:

begining

advance 3: regular 8

after exam

advance 4 (92students) : regular 7 (92/4=23; 23*7=161 students)

So total students we have 161+92=253,

remember we have advance 3: regular 8 so

253/(3+8)=253/11=23

23*3=69, 23*8=184

Answer:

Step-by-step explanation:

So take 3:5 and add them  which gets us 8 then divided 880 by 8 = 110

Hope this helps :D

Answer:

330:550

Step-by-step explanation:

divide 880 to (3+5=8) so 880/8=110

3:5 will be 3*110: 5*110 so is 330: 550

Answer:

  5x +14y = -21

Step-by-step explanation:

One way to write the equation of a line from two points is ...

  (y2 -y1)(x -x1) -(x2 -x1)(y -y1) = 0

  (1 -(-4))(x -7) -(-7 -7)(y -(-4)) = 0

  5(x -7) +14(y +4) = 0

  5x +14y -35 +56 = 0

  5x +14y = -21 . . . standard form equation of the line

Answer:

=-4x^2-11x+13

Step-by-step explanation:

Answer:

232

Step-by-step explanation:

232

9514 1404 393

Answer:

  (3, -2)

Step-by-step explanation:

Given:

  y = -2x +4

Find:

  the value of x for y=-2

Solution:

  Put the value of y into the equation and solve for x:

  -2 = -2x +4 . . . . use -2 for y

  -6 = -2x . . . . . . . subtract 4

  3 = x . . . . . . . . . .divide by -2

The solution of interest is (3, -2).

Answer:

he got 24 correct

Step-by-step explanation:

so basically yo do 30 divided by 10 to get 10 percent then you do that answer times 8 to get 80 percent yw xx

There are 24 answer correctly on his test.

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

Bradley answered 80% of the questions on his science test correctly.

And, There were 30 questions on the test.

Now,

Since, There were 30 questions on the test.

Hence, The correct answers = 80% of 30

                                            = 80/100 × 30

                                             = 24

Thus, Number of Bradley answer correctly on his test = 24

Learn more about the percent visit:

https://brainly.com/question/24877689

#SPJ2

Answer:

PLEASE CHECK THIS OUT

If you subscribe to our educational channel then I will 100% make you brainliest

its called Everimó Academy     dont forget the accent!? We appreciate it

Step-by-step explanation:

Answer:

$14.40

Step-by-step explanation:

20% off of $18 is $14.4

Answer:

Step-by-step explanation:

ok so this is a vetical angle. so they are equal to 180. so if 1 measurement is found the other is the difference of 180 and that angle measeurement.

so y is the same as 110

and 180 - 110 is 70, so x and z are equal to 70.

i hope this helped you :)

Answer:

y=110, x and z=70

Step-by-step explanation:

110 and y are congruent angles, so they both are 110 degrees.

both angles on the same side of the line always total 180 degrees,

so x and z must be 70.

Complete Question:

Maria rode her bike for three-fifths of a mile on Monday and one-fifth of a mile on Tuesday. How many miles did she ride altogether?

Group of answer choices.

A. 1/5

B. 3/10

C. 7/5

D. 4/5

Answer:

D. 4/5

Step-by-step explanation:

Given the following data;

Distance covered on Monday, D1 = 3/5 miles

Distance covered on Tuesday, D2 = 1/5 miles

Total distance covered, Td = D1 + D2

Substituting into the equation, we have;

[tex] Td = \frac {3}{5} + \frac {1}{5}[/tex]

Lowest common denominator (LCD) = 5

[tex] Td = \frac {3 + 1}{5} [/tex]

Td = 4/5 miles.

Therefore, Maria rode 4/5 miles altogether.

Answer:

no

Step-by-step explanation:

its is not a solution, however if the equal sign actually looks like

[tex] \leqslant [/tex]

then it would be yes

Answer:

Not a solution

Step-by-step explanation:

( x, y ) = ( - 3, 4 )

x = - 3

y = 4

Substitute the values of x and y in the equation,

y = 3x + 107

4 = 3 ( - 4 ) + 107

4 = - 12 + 107

4 = 107 - 12

4 ≠ 95

Therefore,

( - 3, 4 ) is not a solution to the

equation y = 3x + 107.

Answer:

4:6

Step-by-step explanation:

You multiply 2 by 2 and you get 4, if you multiply 3 by 2 you get 6, so that means they are equivalent.

Answer:

8.009, 8.04, 8.15

Step-by-step explanation:

Look at the decimal places. The farther away it is on the right side, the less the value of the number.

Answer:

8.009; 8.04; 8.15

Step-by-step explanation:

8.009 is the least

8.15 is the greatest

hope this helps :3

if it did pls mark brainliest

Answer:

The answer is $84

Step-by-step explanation:

hope this helps

$70×0.2=14

$70+$14=$84

Answer:

Step-by-step explanation:

$87.50 would be your answer

since you're trying to find the book cost originally you would subtract the total minus the discount to get .8

then you would divide 70/.8 to get your answer of 87.50