The 7th grade class experienced a 15% decrease in enrollment.Last year,the 7th grade class had 280 students. How many how many students are enrolled in the 7th grade this year?

Answers

Answer 1

Answer: 238

Step-by-step explanation: 10% of 280 is 28. 1% of 280 is 2.8. Multiply 2.8 times 5 and you get 14. Add 10% and 5% (28+14) and you get 15% which is 42. Subtract 42 from 280 and you get 238.

Answer 2

Answer:

232 students are enrolled this year.

Step-by-step explanation:

Since 15% of the enrollment of the previous year is gone, you must take 15% of the total number of students and subtract that from the total number of students.

[tex]280*0.15=42[/tex]

This tells us that the 15% decrease means there are 42 fewer students enrolled this year. Now you would just subtract 42 from 280.

280 - 42 = 232


Related Questions

Write the phrase as an expression.

a number b squared

Answers

answer:
b^2

step-by-step explanation:

A new concert venue just opened in downtown Augusta and they are in the process of deciding how many tickets they can sell for each show. The venue has three levels, two general admission that only have standing room, and one level with 240 seats. The first level of standing room is a square with one side measuring 80'. The second level, also standing room, is a rectangle measuring 120' by 30' ft. The third level has 240 seats. The venue thinks each person will occupy 2.5 square feet. How many tickets should they sell?

Answers

Answer:

4,240 tickets

Step-by-step explanation:

The first level of standing room is a square with one side measuring 80'.

Area of the first level = length^2

= 80^2

= 6,400 square ft

The second level, also standing room, is a rectangle measuring 120' by 30' ft.

Area of the second level = length × width

= 120 × 30

= 3,600 square ft

Total area of the standing rooms = (6,400 + 3,600) square ft

= 10,000 square ft

Each person in the standing room will occupy 2.5 square ft

Number of Persons that will occupy the standing room = Total area of the standing rooms / 2.5 square ft

= 10,000 square ft / 2.5 square ft

= 4,000

Therefore the number of Tickets that should be sold

= Number of seats + Number for standing Room

= 240 + 4000

= 4,240 tickets

3. The point below best represents which of the following? to 6 7 A. 738 B. V35 C. 145 D. 48​

Answers

Answer:

686

Step-by-step explanation:


A tuxedo shop rents its tuxedos for $30 per day. They charge a nonrefundable fee of $ 60 for each tuxedo.
Use the dropdown boxes to create an equation that could be used to determine the total cost, y of renting a tuxedo for x days.

Answers

Given parameters:

Charge per day of Tuxedo = $30 per day

Non-refundable charge = $60 for each tuxedo

Unknown:

Equation to determine total cost = ?

Solution:

  Represent;

 Total cost  = y

 Number of days = x

Now;

   Total cost =  Non refundable charge + charge per day

          y  = $60 + $30x

The equation is;

        y = 60 + 30x for a tuxedo

use the distributive property to expand 2(6x-5y)-7

Answers

2 x 6x - 2 x 5y - 7
12x - 10y - 7



The tables given are for the linear functions f(x) and g(x). What is the input value for which f(x) = g(x) is true?

x =

Answers

Answer: -1

Step-by-step explanation:

Answer: -1

Step-by-step explanation: I got it right :))


The ratios in an equivalent ratio table are 3:12, 4:16, and 5:20. If the first number in the ratio is 10, what is the second number?

Answers

Answer:

10:40

Step-by-step explanation:

The lengths of pregnancy terms for a particular species of mammal are nearly normally distributed about a mean pregnancy length with a standard deviation of 7 days. About what percentage of births would be expected to occur within 7 days of the mean pregnancy length

Answers

Answer:

68.268%.

Step-by-step explanation:

Let \mu be the mean pregnancy length.

The given standard deviation, [tex]\sigma=7[/tex] days

The z-score:

z=\frac{x-\mu}{\sigma}

where x is any pregnancy length.

The range of x within 7 days of the mean pregnancy length is

[tex]\mu-7<x<\mu+7.[/tex]

z-score for this range is:

[tex]\frac{\mu-7-\mu}{\sigma}<z<\frac{\mu+7-\mu}{\sigma}[/tex]

[tex]\Rightarrow -1<z<1[/tex]

So, the area on the normally distributed curve for the above range of z-score will give the expected percentage of birds to occur within 7 days of the mean pregnancy length.

Now, from the z-score table:

The area from [tex]z = -\infty[/tex] to z=1 is 0.84134

and the area from [tex]z = -\infty[/tex] to z=-1 is 0.15866.

So, the area for -1<z<1

=0.84134 - 0.15866

=0.68268

Hence, the percentage of births would be expected to occur within 7 days of the mean pregnancy length=68.268%.

if your call phone bill was $67.82 and there is a 7.5% late free tax how much will your bill will be

Answers

Answer:

$72.91

Step-by-step explanation:

1.) 0.0075 x 67.82= 5.0865

2.) 67.82+5.0865= 72.9065 but I rounded it to 72.91 because with money it doesn't go beyond the hundredths place

please send help i really need it lol thank u

Answers

Answer:

i think it is B

Step-by-step explanation:

The correct answer is D

a performer excepts to sell 5,000 tickets for an upcoming concert. They want to make a total of $311,000 in sales from these tickets.

how much well they make if they sell 7,000 tickets ?

Answers

The answer is 435,400
Explanation :
If 5000 tickets = 311,000
And 7000 tickets = x
Cross multiplication method
Then x = 7000 *311,000 / 5000
X= 435,400

[tex]\frac{3}{5} /8[/tex]

Answers

The answer is 0.075 or 3/40

Answer:

[tex]\huge\boxed{\frac{\frac{3}{5}}{8}=\dfrac{3}{40}}[/tex]

Step-by-step explanation:

[tex]\dfrac{a}{b}=a:b\\\\a:b=a\cdot\dfrac{1}{b}\\\\========================\\\\\dfrac{\frac{3}{5}}{8}=\dfrac{3}{5}:8=\dfrac{3}{5}\cdot\dfrac{1}{8}=\dfrac{3\cdot1}{5\cdot8}=\dfrac{3}{40}[/tex]

please answer asap, i'll give brainliest
Which coordinate grid shows the correct locations of P(1.5, 1), point Q, which is a reflection of point P across the y-axis, and R(2.5, −1)?

Answers

Answer:

it's B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

its B

Athena bought x boxes of cookies to bring to a party. Each box contains 10 cookies. She decides to keep two boxes for herself. She brings 70 cookies to the party. Which equation can be used to find the number of boxes, x, Athena bought?

Answers

Given parameters:

Number of boxes Athena bought for the party  = x

Number of cookies per box = 10

Number of cookies she brought to the party = 70

Number removed  = 2 boxes

Unknown:

Equation of the number of boxes = ?

Solution:

    1 box of cookies contains 10 cookies

If Athena, removed 2 boxes, in those two boxes, we have 20 cookies

 Total number of cookies  = 70 + 20 = 90 cookies;

So;

    x  = [tex]\frac{total number of cookies}{number of cookies per box}[/tex]

   Therefore;

                    x  = [tex]\frac{90}{10}[/tex]boxes

what is the answer when you simplify?.​

Answers

The answer when you simply is B. 4^2

Answer:

C

Step-by-step explanation:

Because when you multiply 4³ × 4^4 = 16384

And 4^9 = 262144

(divide) 16384/262144 = .0625

.0625 = [tex]\frac{1}{16}[/tex]

[tex]\frac{1}{4^2}[/tex] = [tex]\frac{1}{16}[/tex]

because 4 * 4 = 16

HOPE THIS HELPED!!!

The cost of the hiking trip is 2/3 of the cost of last years trip this year trip cost $32 write and solve an equation to find the cost of last years trip

Answers

Answer:

(32/2)*3=48

Step-by-step explanation:

In order to find the answer, we must find one third of last year's trip. To do this, we can simply divide the cost of this years trip by two, 32/2=16.

Now if we multiply this this number by 3, 16*3=48, we can see that the total cost of last year's trip was $48.

If we'd like to turn this into one equation, it looks like this: (32/2)*3=48

What is the range of the function f (x)= 4x -6 when the domain is { -4,-2,0,2,6}?

Answers

Answer:

{-22, -14, -6, 2, 18}

Step-by-step explanation:

f(-4)=4(-4)-6=-22

f(-2)=4(-2)-6=-14

f(0)=4(0)-6=-6

f(2)=4(2)-6=2

f(6)=4(6)-6=18

Triangle A B C is shown with centroid G. Lines are drawn from each point of the triangle through the centroid and to the midpoint of the opposite side to form line segment A D, line segment B E, and line segment C F. The length of line segment D G is x minus 15 and the length of line segment G A is x + 7.
G is the centroid of triangle ABC.

What is the value of x?

What is the length of segment DG?

What is the length of segment AG?

What is the length of segment AD?

Answers

Answer:

37

22

44

66

Step-by-step explanation:

the value of x is 37

the length of segment DG is 22 units

The length of segment AG is 44 units

the length of segment AD is 66 units

took it on edg

hope this helps (:

The length from the vertex to the centroid is twice the length from the

centroid to the midpoint of the opposite side.

x is 37Segment [tex]\overline {DG}[/tex] is 22Segment [tex]\overline {GA}[/tex] is 44Segment [tex]\overline {AD}[/tex] is 66

Reasons:

The known parameters are;

The centroid of ΔABC = Point G

Segments [tex]\overline {AD}[/tex], [tex]\overline {BE}[/tex], and [tex]\overline {CF}[/tex] are the medians of ΔABC

Length of line segments [tex]\overline {DG}[/tex] = x - 15

Length of line segments [tex]\overline {GA}[/tex] = x + 7

Required:

The value of x, and lengths of the segments of median [tex]\overline {AD}[/tex]

The median is divided at the centroid of the triangle to ratio 2:1

[tex]Length \ of \ line \ segment \ \overline{GA} = \dfrac{2}{3} \times \overline{AD}[/tex]

Therefore;

[tex]\overline{AD} = \mathbf{\dfrac{3}{2} \times \overline{GA}}[/tex]

[tex]Length \ of \ line \ segment \ \overline{DG} = \mathbf{\dfrac{1}{3} \times \overline{AD}}[/tex]

Therefore;

[tex]\overline{AD} = 3\times \overline{DG}[/tex]

Which gives;

[tex]\dfrac{3}{2} \times \overline{GA} = 3\times \overline{DG}[/tex]

Therefore;

[tex]\dfrac{3}{2} \times (x + 7) = 3\times (x - 15)[/tex]

3·x + 21 = 6·x - 90

21 + 90 = 6·x - 3·x

111 = 3·x

3·x = 111

[tex]x = \dfrac{111}{3} = 37[/tex]

x = 37

[tex]\overline {DG}[/tex] = x - 15

The length of line segment [tex]\overline {DG}[/tex] = 37 - 15 = 22

[tex]\overline {GA}[/tex] = x + 7

Length of line segment [tex]\overline {GA}[/tex] = 37 + 7 = 44

[tex]\overline {AD}[/tex] = [tex]\overline {DG}[/tex] + [tex]\overline {GA}[/tex]

Therefore;

Length of line segment [tex]\overline {AD}[/tex] = 22 + 44 = 66

Learn more here:

https://brainly.com/question/7698132

All copper has a density of 8.83g/cm3. True Or False.
please help ​

Answers

Answer:

False

Step-by-step explanation:

Copper actually has about 8.96 g/cm3

Answer: No

Step-by-step explanation:

(x²+7x+10) =
whats the answer help me plsss:(​

Answers

Answer:

(х+2)(х+5)

Step-by-step explanation:

easy, just train quadratic equations ;)

Answer: (x + 2) (x + 5)

Simplify:
3(2x - 6) + x
A: 6x - 18
B: 7x - 6
C: 7x - 18
D: 5x - 6 +x

Answers

6x -18+x

7x-18

Option C is the correct answer

2. What is the variable in this expression? 4y-5

Answers

Answer:

y

Step-by-step explanation:

A variable is a letter that holds the place of a number. y in this expression matches that description, so it is the variable.

Suzy plants 4 saplings in a row in her garden the distance between two adjacent saplings in 3/4 meters find the distance between the first and the last sapling? please show me how to work this out with the answer​

Answers

Answer:

The answer is 3 meters.

Step-by-step explanation:

Suzy has 4 saplings the distance between two of the is 3/4

So if the distance from one to another is 3/4 then you have to do 3/4 (.75) times 4. Giving you the answer of 3 meters.

Answer: three meters

Step-by-step explanation:

The least common multiple of two numbers is 24. Which could be the two numbers?
6 and 8
4 and 6
8 and 16
4 and 12

Answers

Answer:

a

Step-by-step explanation:

Answer:

A=6 and 8

Step-by-step explanation:

Hope it is correct

positive integer less than 2 ​

Answers

Answer:

1

Step-by-step explanation:

1 is a positive integer

1 hope this helps skrrrrrt i’m out bois

Express 156 as the product of primes.

Answers

Answer:

Step-by-step explanation:

Divide the numbers by only the prime numbers.

After u have done completing as in the attached picture:

you have to write :

156 = 2 × 2 × 3 × 13

Write equation in slope intercept form (x=mx+b). Find the slope (x) and the y-intercept (b) of the line

Answers

Answer:

y = 4x - 3

Step-by-step explanation:

When x = 0, y = -3

When y = 0, x = 3/4

The perimeter of a rectangle is found by multiplying the sum of the length, shown as LaTeX: ll, and the width, shown as LaTeX: ww, by LaTeX: 22. The length of a certain rectangle is LaTeX: 2020 . Which inequality shows that the perimeter of this rectangle is less than LaTeX: 5757 units?

Answers

Answer:

40 + 2W < 57

Step-by-step explanation:

Given that:

Perimeter of a rectangle (P) :

P = 2(length(L) + width(W))

If the length of a certain rectangle L = 20 ; which inequality shows perimeter of rectangle is less than 57 units

P = 2(length(L) + width(W))

40 + 2W < 57

What's the circumference of a circle with a diameter of 9 inches?​

Answers

Answer:

9pi

Step-by-step explanation:

circumference= 2 (pi) (r)

radius = diameter \ 2

r = 9 \ 2 = 4.5in.

c = 2 (pi) (4.5)

c = 9pi or 28.3in.

Hope this helps!

What is the value of 3-(-2)?
5 4 3 -2 -1 0 1 2 2 3
4 5
0-5
0 -1
O 5

Answers

Answer:

answer it is 5

Step-by-step explanation:

yea

I believe

It 5





Hop this helps





Because I asked my teacher
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