At East Junior High School, there are a total of 1175 students in the 7th and 8th
grade classes combined. The 8th-grade class has 75 more students than the 7th-grade class.
A. Let x represent the number of students in the 7th-grade class, while y
represents the number of students in the 8th-grade class. Write a system
to model this situation.
B. Solve the system to determine the number of students in the 7th-grade
class and the number of students in the 8th-grade class.
# of 7th graders = _____ # of 8th graders = _____

Answers

Answer 1

Answer:

7th grade has 1100 and 8th has 75

Step-by-step explanation:

here's why...........1100 plus 75 is the total of 1175


Related Questions

Simplify
-4x+2x2-x2+5-3x

Answers

Answer:

9 - 7x - x²

Step-by-step explanation:

-4x+2x2-x²+5-3x = -4x-3x+2x2+5-x²

I arranged the like terms together so it is easier to do the calculations.

-4x-3x+2x2+5-x² = -7x+4+5-x²

Simplify.

-7x+4+5-x² = 9-7x-x²

Answer:

[tex]x^{2} -7x+5[/tex]

Step-by-step explanation:

First, organize it by highest degrees: [tex]2x^{2} -x^{2} -4x-3x+5[/tex]

Then combine like terms: [tex]x^{2} -7x+5[/tex]

One side of a rhombus is 9 ft. What
is its area?

Answers

Answer:

48

Step-by-step explanation:

just sub in the formula

A
B
C
D
Please help me

Answers

Answer:

b and d

Step-by-step explanation:

What is the inverse of the function g(x)=5(x-2)g(x)=5(x−2)g, left parenthesis, x, right parenthesis, equals, 5, left parenthesis, x, minus, 2, right parenthesis

Answers

Answer:

(x+10)/5

Step-by-step explanation:

Given the function

g(x) = 5(x-2)

Open the parenthesis

g(x) = 5x-10

To find the inverse we need to follow the steps;

Step 1; make y as g(x)

y = 5x-10

Step 2; replace y with x;

x = 5y - 10

Step 3; make y the subject of the formula;

x = 5y-10

5y = x+10

y = (x+10)/5

Step 4: substitute y as g^(-1)(x)

g^(-1)(x) = (x+10)/5

Hence the inverse of the function is (x+10)/5

Answer: x+10/5

Step-by-step explanation:

Same as above

1. If a hexagon represents one whole what does 4 triangles represent?

2. If If a hexagon represents one whole what does 1 hexagon and 1 trapezoid represent?

3. If a hexagon represents one whole what does a rhombus represent ?

4. If a hexagon represents one whole what does 3 rhombus represent?

5. If a hexagon represents one whole what does 1 trapezoid represent?

6. If a hexagon represents one whole what does 2 hexagons represent?

PLZZ HELP

Answers

Answer:

triangel, hexagon, square

Step-by-step explanation:

because thy are just better then the oters and hexagons are more famous

Draw the shape!
Find the volume!
PLEASE INCLUDE WORK!

Answers

okay i gotchu hold up

Your buddy constructs an angle bisector BD−→− for ∠ABC. She says that m∡ABD and m∡DBC formed by the angle bisector are congruent. Do you think that is always, sometimes or never true for angle bisectors?

Answers

Answer:

Always true

Step-by-step explanation:

The definition of an interior or internal angle bisector is the the dividing line segment that splits the angle into two  equal angles (parts)

Therefore, given that the segment BD is the bisector of ∠ABC, then the formed angles m∡ABD and m∡DBC are, by definition of bisected ∠ABC, always congruent

Cab you please help me...

Answers

Answer:

- 2x² + x + 42x² + x + 43

Step-by-step explanation:

Given functions

r(x) = x + 4s(x) = 2x²

Finding (r-s)(x), (r+s)(x), (r*s)(-1)

(r - s)(x) = r(x) - s(x) = x + 4 - 2x² = - 2x² + x + 4(r + s)(x) = r(x) + s(x) = x + 4 + 2x² =  2x² + x + 4(r*s)(-1) = r(-1)*s(-1) = (-1 + 4)*(-1)² = 3*1 = 3

Answer:

1. - 2x² + x + 4

2. 2x² + x + 4

3. Answer = 3

Example functions we are given:

r(x) = x + 4

s(x) = 2x²

Now, we Find (r-s)(x), (r+s)(x), (r*s)(-1)

(r - s)(x) = r(x) - s(x) = x + 4 - 2x² = - 2x² + x + 4

(r + s)(x) = r(x) + s(x) = x + 4 + 2x² =  2x² + x + 4

(r*s)(-1) = r(-1)*s(-1) = (-1 + 4)*(-1)² = 3*1 = 3

Determine the type of triangle that is drawn below.

Answers

Answer: equilateral

Step-by-step explanation:

Anyone know the answer? ​

Answers

The answer is the letter B, that is the inverse

Two sides of a triangle are equal in length, and the third slide is 5 less than the length of the equal sides. If the perimeter of the triangle is 49, how long are it's sides?

Answers

Answer:

The sides are 14.6, 14.6, 9.6

Step-by-step explanation:

Step one:

given

Perimeter= 49

let the equal sides of the triangle be x

so the third side will be x-5

hence the first side is=x

the second side =x

and the third side=x-5

the perimeter of triangle is

P= A+B+C

where A B and C represents all the sides

49=x+x+(x-5)

solve for x

49=2x+x-5

49=3x-5

49-5=3x

44=3x

x=44/3

x=14.6

Hence the third side is

=x-5=14.6-5

=9.6

The sides are 14.6, 14.6, 9.6

Answer:

18 for same length and 13 for 3 length

Step-by-step explanation:

Leslie and Surekha were standing on opposite sides of a road. Suddenly, they spotted a puppy stranded on the road and both rushed straight to where the puppy was, to pick it up. If Leslie ran at an angle of 35 degrees to the edge of the road and Surekha at an angle of 70 degrees, at what angle did their path meet?

Answers

Answer:

75°

Step-by-step explanation:

we can form a triangle to help us understand how to solve this problem:

                                                    puppy

∠ Leslie = 35°                                                   ∠ Surekha = 70°

If Leslie's angle is 35° and Surekha's angle is 70°, that gives us a total of 105°. Since the sum of the triangle's three angles is 180°, then the angle at which they will meet is 180° - 105° = 75°

In this exercise, we have to calculate the angle of the path that they met, so we will have:

75°

We know that the geometric figure in question is a triangle and that the sum of its internal angles must be equal to 180 degrees, thus:

[tex]180-105=X\\180-105=75\\[/tex]

See more about triangles at brainly.com/question/2269348

Does anyone has Algebra ll and if so can you please help me with this problem 5i/-2-6i And also I can't pay you but I hope God can give more good luck

Answers

Answer:

[tex]s = \frac{5i}{-2-6i} = -\frac{30}{40}-\frac{10}{40}i[/tex]

Step-by-step explanation:

We have the following complex number [tex]s = \frac{5i}{-2-6i}[/tex], we proceed to simplify the expression as follows:

1) [tex]\frac{5i}{-2-6i}[/tex] Given.

2) [tex](5i)\cdot (-2-6i)^{-1}[/tex] Definition of division.

3) [tex][(5i)\cdot (-2-6i)^{-1}]\cdot [(-2+6i)\cdot (-2+6i)^{-1}][/tex] Modulative and associative properties/Existence of the additive inverser

4) [tex][(5i)\cdot (-2+6i)]\cdot [(-2-6i)^{-1}\cdot (-2+6i)^{-1}][/tex] Commutative and associative properties.

5) [tex][(5i)\cdot (-2+6i)]\cdot [(-2-6i)\cdot (-2+6i)]^{-1}[/tex] [tex]a^{c}\cdot b^{c} = (a\cdot b)^{c}[/tex]

6) [tex][(5i)\cdot (-2+6i)]\cdot [4+36]^{-1}[/tex]    [tex](a+b)\cdot (a-b) = a^{2}-b^{2}[/tex]/Definition of complex number/  [tex]a\cdot (-b) = -a\cdot b[/tex]

7) [tex][(5i)\cdot (-2)+(5i)\cdot (6i)]\cdot 40^{-1}[/tex] Definition of sum.

8) [tex](-10\cdot i+30\cdot i^{2})\cdot 40^{-1}[/tex]    [tex]a\cdot (-b) = -a\cdot b[/tex]/Associative and commutative properties.

9) [tex](-30-10i)\cdot 40^{-1}[/tex] Commutative properties/Definition of complex number/ [tex]a\cdot (-b) = -a\cdot b[/tex]

10) [tex]-30\cdot 40^{-1}-(10i)\cdot 40^{-1}[/tex] Distributive property.

11) [tex]-\frac{30}{40}-\frac{10}{40}i[/tex] Definition of division/Result.

[tex]s = \frac{5i}{-2-6i} = -\frac{30}{40}-\frac{10}{40}i[/tex]

ill make you brainliest just please help me <3

Answers

Answer: the answer is below!!!!!!

Step-by-step explanation:

first: take 28 and divide it by 2 and you will get 14

now take 2 and divide it by 2 and you will get 1

now take the 14 put it over 1 like this------>14/1

Second:take the 5 and divide it by 2 and you get 2.5

not take the 2 and divide it by 2 and you get 1

now take 2.5 and put it over the 1 like this-------->2.5/1

third: take the 3 and divide it by 3/4  

Please hurry I need this fast

Answers

Answer:

Option 2

Step-by-step explanation:

∠CAB ≅ ∠CED (Given)

∠ACB ≅ ∠ECD (Vertical angles)

2). AA

help ! but people who cannot help me with this please don't answer because i don't know how to do this. i was not in class when they reviewed this, you don't have to give me the answer but at least tell me how to do it.

Answers

Answer:

$16

Step-by-step explanation:

If 3 rides cost $28 and 6 rides cost 40, each ride costs $4. 28 - (3 x 4) = $16 admission fee

The first several steps of evaluating (-2)(3&4/7) are shown, including the distributive property. What is (-2)(3&4/7)?

Answers

Answer:

-7 1/7

Step-by-step explanation:

Answer:

a or 7 1/7

Step-by-step explanation:

talk to me i talk back

Answers

Heyyy how has your day

Answer:

Hi, parrot

Step-by-step explanation:

Please give me brainliest

Enter the equation in standard form.
y = 4x − 2

Answers

Answer:

y-4x=-2

Step-by-step explanation:

standard form is just putting both variables on the same side.

hope this helps :)

Through (-3,-2), perpendicular to y=-x-4

Answers

Answer:

your answer is not perpendicular

Step-by-step explanation:

so first you put the y which is -2 and the -x with -3

[tex]-2=(-3)-4[/tex]

when you subtract the -3 from 4 you will get 7

[tex]4-(-3)=7[/tex]

7 is not equal to -2 so it is not perpendicular

[tex]7\neq -2[/tex]


A park in the shape of a rectangle is 18 miles long and 24 miles wide. How much shorter is your walk
if you walk diagonally across the park instead of along the two sides of it?

Answers

Answer:
30
Explanation:
24^2+18^2
=900
√900
=30
(You have to use Pythagorean theorem so a^2+b^2=c^2)

Carlos bought 4 yards of packing tape. He used 1 3/5 yards on a package for his father and 2 1/3 for a package. How many yards of packing tape does Carlos have left (only write the fraction with no words as your answer)?

Answers

Answer:

1/15 yards

Step-by-step explanation:

Total yards of packing tape = 4 yards

Yards used for his father = 1 3/5 yards

Yards used for another package = 2 1/3 yards

Total yards used = 1 3/5 + 2 1/3

= 8/5 + 7/3

= 24+35/15

= 59/15 yards

How many yards of packing tape does Carlos have left

Total yards left = Total yards of packing tape - Total yards used

= 4 - 59/15

= 60-59/15

= 1/15

Total yards left = 1/15 yards

can you please help me ​

Answers

Answer:

Yes.

Step-by-step explanation:

Yes, the equation is in standard from because the way standard form is written is: Ax+By=C.

Hope this helps! Have a great day!! (*^w^*)

Please give me an explanation too I need help Solve for y: 2x-y=3

Answers

Answer:

y = 2x -3

Step-by-step explanation:

to solve for y, simply isolate the y so in this case move 2x to the right side of the equation in which it becomes -y= -2x +3 and then divide by -1 which is beside the -y essentially cause y cannot be negative so then the equation becomes y = 2x -3

Answer:

y=2x-3

Step-by-step explanation:

2x-y=3

-2x on both sides of the equal sign which leaves you with -y=-2x+3

divide both sides by negative 1

y=2x-3

Can uh help me Please
with work show will give uh brainlish!!!​

Answers

Answer:

2a. 9854, 24219, 30045

2b. 7986, 17213, 19000, 88344

3a. 108359

3b. 41059

If you like to venture further, feel free to check out my insta (learntionary). It would be best if you could give it a follow. I'll be constantly posting math tips and notes! Thanks!

Answer:

Q2. a. 9854; 24219; 30045

Q2. b. 7986; 17213; 19000; 88344

Q3 a. 108349

Q3 b. 41059

If G( x ) = 3 x + 1, then G -1 (1) is...

-1/3
-4
-0

Answers

Answer:

-4

Step-by-step explanation:

3+1 = 4 so just put a dash at the start and you ger -4

HELP PLEASE I DONT UNDERSTAND AND NEED TO PASS

Answers

Answer:

20 for de first one and answer (B) for the second.

Step-by-step explanation:

20 for de first one and answer (B) for the second.

hope this helped;3

Which statement is true?​

Answers

Answer:

Step-by-step explanation:

c.

Jada’s bike wheels have a diameter of 20 inches. How far does she travel if the wheels rotate 37 times?
A. 2,549 inches
B. 2,324 inches
C. 2,347 inches
D. 2,515 inches
(SHOW YOUR WORK FOR A BRAINLIEST)

Answers

Answer:

C

Step-by-step explanation:

Answer:

B. 2,324 inches

Step-by-step explanation:

You need to find the circumference of the bike wheels first so that you know how much she would travel if her wheels rotated 1 time. Circumference of circle = pi × d

1 time = 20pi

37 times = 20pi × 37

              = 740pi

              = 2324.778564...inches

The diameter of a cartwheel is 2.1 m. Find the distance travelled when it completes 100 revolutions.

You need to find the circumference of the cartwheels first so that you know how much it would travel if her wheels revoluted 1 time. Circumference of circle = pi × d

1 revolution = 2.1pi

100 revolutions = 2.1pi × 100

                          = 210pi

                          = 659.7344573...m

The diameter of a circular park is 98 m. Find the cost of fencing it at $4 per meter.

You need to find the circumference of the park first so that you know how much it would cost. Circumference of circle = pi × d

Circumference of park = 98pi

Cost of fencing = 4 × 98pi

                          = 392pi

                          = $1231.50

                          ≈ $1232.00

what is the area of ABC round to the nearest tenth of a square unit ​

Answers

Can you give more context to the question so it can be answered
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