Mathematics High School

I need help with this problem :)

I Need Help With This Problem :)

Answers

Answer 1

Answer:

Replace all occurrences of y with 6x−3 in each equation.

Replace all occurrences of y in 18x−3y=9 with 6x−3 .

18x−3(6x−3)=9

y=6x−3

Simplify 18x−3(6x−3).

9=9

y=6x−3

Remove any equations from the system that are always true.

y=6x−3

Step-by-step explanation:

Related Questions

Solve for x. Round your answer to the nearest tenth. (one decimal place)

X=?? degrees

Answers

Answer:

Use sine:

sin x = 20/30sin x = 2/3x = arcsin (2/3)x = 41.8°

Simplify the complex fraction. 3/4 2/5

Answers

Answer:

assuming you meant (3/4)/(2/5)

15/8 or 1  7/8

Step-by-step explanation:

use a calculator

Answer:

4214please like my 30 ANSWERS

Given the figure is a kite. Find the indicated measures.

Answers

Answer:

Both angles have a measure of 98 degrees, as they are congruent, and all angles must equal 360 degrees.

360- 164 = 196

196/2=98

Find the area of a regular octagon with side length 6 cm

Answers

Answer:

173.82cm²

Step-by-step explanation:

A=2(1+2)a2=2·(1+2)·62≈173.82338cm²

Answer: 173.82cm²

Step-by-step explanation:

helpppppppp im finna get a F

Answers

Answer:

275 dollars every

month

Step-by-step explanation:

point P(4,2) is mapped onto point Q(0,2) under a reflection. Identify the line of reflection.

Answers

Answer:

the line of reflection is x=2

Step-by-step explanation:

You are kayaking along a 24-mile stretch of river. You travel 6 miles per hour when paddling and 2 miles per hour when drifting. Give three possible combinations of paddling and drifting times. Write your answers as ordered pairs.

Answers

Answer:

(1,6), (2,6), (3,3)

Step-by-step explanation:

Since you  travel 6 miles per hour when paddling and 2 miles per hour when drifting, and the total distance covered is 24 miles, we find the times t and t' of paddling and drifting respectively in which the product 6t + 2t' = 24.

So, for the first values of t and t' , we have t = 1 and t' = 9

So, 6t + 2t' = 6 × 1 + 2 × 9 = 6 + 18 = 24

As an ordered pair (1, 9)

For the second set of values of t and t' , we have t = 2 and t' = 6

So, 6t + 2t' = 6 × 2 + 2 × 6 = 12 + 12 = 24

As an ordered pair (2, 6)

For the third set of values of t and t' , we have t = 3 and t' = 3

So, 6t + 2t' = 6 × 3 + 2 × 3 = 18 + 6 = 24

As an ordered pair (3, 3)

So, the three different combinations of paddling and drifting times are (1,6), (2,6), and (3,3)

7x-3=5x+5
7x-3=7x+5
7x-3=-3+7x
what can you say about the coefficients of the terms with x in the equation?

Answers

The coefficients are all positive

Nina gave her grandmother 12 cookies. She had more than 16 cookies
remaining. If y represents the number of cookies Nina started with, which
inequality represents this situation?

A y + 16 > 12

B y - 16 < 12

C y + 12 > 16

D y - 12 > 16

Answers

Answer:

i think its a

Step-by-step explanation:

Answer:

I think its D

Step-by-step explanation:

HELPPP ASAP!!!! This is due tmr !!

Answers

Answer:

A&B are functions because the domains aren't repeating while c is

Step-by-step explanation:

how do you find the base of a tringle

Answers

Answer:/Step-by-step explanation:

To find the area you would  use  A = bh/2

So instead you would ---> B =   2 (A/H)

Given the scatter plot, choose the function that best fits the data.


f(x) = 2^x

f(x) = 2x

f(x) = −2x

f(x) = 2x^2

Answers

Answer:

2x^2-3x-5=y

(2x-5)(x+1)=y

(2x-5)(x+1)=0

2x-5=0

2x=5

x=2.5

x+1=0

x=-1

Have a great day!

Step-by-step explanation:

PLEASE ANSWER THANK YOU!
Match each equation to a value that makes it true.

Answers

answers

1.) 1/2x = -5 goes with x=-10

2.) -2x = -9 goes with x = 4 1/2

3.) x+ (-2) = 1/2 goes with x= -4.5

4.) -2x = 7 goes with x= -3.5

5.) -2 + x = 1/2 goes with x = 2 1/2

6.) -1/2x = 1/4 goes with x= -1/2

4x-5.2y + 6y + 7.9x - 8x

Answers

Answer:

3.9x + 0.8y

Step-by-step explanation:

this is your answer

Examine the statements below. Select each situation that would require the application of surface area.



Determining the amount of space inside a jewelry box.


Determining the amount of wrapping paper needed to wrap a birthday gift.


Determining the amount of wood needed to build a tree house.


Determining the amount of carpet needed to cover the floor of a room.


Determining the amount of water needed to fill a pool.


Determining the area of the shadow of a pine tree.

Answers

Answer:

Determining the amount of wrapping paper needed to wrap a birthday gift.

Determining the amount of wood needed to build a tree house.

Determining the amount of carpet needed to cover the floor of a room.

Determining the area of the shadow of a pine tree.

Step-by-step explanation:

I submitted my test and got it wrong but it showed these as the correct answers so

find the unit rate of $152 in 10 hours

Answers

$15.20 an hour. Have a good day
$15.20 an hour. Hope this helps!

HURRYYYYYY 30 POINTS. What is the fractional form of 0.02? (it has an underscore over the 2)
A.2/99
B.1/11
C.2/100
D.1/12

Answers

Answer:

2/100 im pretty sure if not then 2/99

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

http://www.calcul.com/show/calculator/recurring-decimal-to-fraction?i=0.02...

While selling 15 copies, a man gains the cost price of 5 copies, find the profit percent.​

Answers

Answer:

If the price is p and the cost is c, then

15p = 20c

p/c = 20/15 = 1.333

so, he made 33% profit

HELPPP PLEASE ANSWER FAST CLASS IS ALMOST OVER!!!

Answers

9514 1404 393

Answer:

  (x -2)^2 + (y +4)^2 = 18

Step-by-step explanation:

To find the constant the expression is equal to, fill in the coordinates of the given point and do the arithmetic.

  (-1 -2)^2 +(-1+4)^2 = 9 + 9 = 18

The equation of the circle is ...

  (x -2)^2 + (y +4)^2 = 18

What is the surface area of the figure below in square meters?

Answers

Answer:

40 m²

Step-by-step explanation:

square area = 4x4 = 16 m²

4 triangles area = 4x3x0.5x4 = 24 m²

16 + 24 = 40 m²

Answer:

sorry just need point sorryyyy

Solve please. Correctly
3(1 - 2a) = -3a - 18

Answers

Answer:

a = 7

Step-by-step explanation:

3(1 - 2a) = -3a - 18

3 - 6a = - 3a - 18

Add 18 to each side:

3 + 18 - 6a = - 3a - 18 + 18

21 - 6a = - 3a

Add 6a to each side:

21 - 6a + 6a = - 3a + 6a

21 = 3a

3a = 21

Divide each side by 3:

3a ÷ 3 = 21 ÷ 3

a = 7


Ms. Carter charges her piano students $40 per lesson plus a semester
recital fee of $55. How many lessons did Tyhir take if he paid a total of $695
for lessons this semester?


1: 14

2: 15

3: 16

4: 17

Answers

Tyhir took a total of 16 lessons from Ms. Carter.

Work: 695-55 ( because the question is not asking for recitals). Then you do 640/40. That gives you an answer of 16.

Have a nice day!!!

PLEASE HELPPPP ASAP!!!! I REALLY NEED IT! WILL MARK BRAINLIEST!!!!
I PUT ALL MY POINTS INTO THIS QUESTION

Answers

Answer:

3.3

Step-by-step explanation:

d = (10 - 4) + (8 - 3)

d = 6 + 5

d = square root of 11

d = 3.31662479 or 3.3

I'll be expecting that brainliest :)

Heather went for a drive in her new car?She drove for 7 hours at a speed of 44.8 miles per hour.How many miles did she drive?

Answers

Answer: 313.6

Step-by-step explanation:

7 x 44.8 = 313.6

what is the answer to 567-37-28*66+7x=838​

Answers

The answer is x = 308



Shshshehdhehdh

5) Show work here: Charlotte bought 16 songs. Three-fourths of the songs are pop songs. 1 How many of the songs are pop songs? A 4 B 8 C 12​

Answers

Answer:

C. 12

Step-by-step explanation:

16 divided by 4 is 4 which means 1/4 of 16 equals 4. If you want 3/4 of 16, you multiply 4 by 3 which is 12.

if a Scientist records a jackrabbit traveling 140m in 7 s. At what do bead does the jackrabbit travel in meters per second​

Answers

Meters PER second just means meters divided by seconds:
140/7 = 20 meters per second

Given variables x, y, and z. What is the end value of x?


x = 9

y = x + 1


A. 1


B. 10


C. x + 1


D. 9

Answers

Answer:

x=y

Step-by-step explanation:

I did mentals maths

If the sales tax rate is 8.2% in California, then how much would you pay in Los Angeles
for a pair of shoes that cost $39.00?

Answers

Answer:

$42.22

Step-by-step explanation:

The sales tax rate = 8.25 = 0.0825  [Divide by 100 to convert in decimal]

The cost of a pair of shoes = $39.00

Tax amount to pay = Tax rate × Cost of a pair of shoes

Now, the total amount you pay for a pair of shoes = Cost of a pair +Tax amount

= $39.00+$ 3.22

Total Price:$ 42.22

Answer:

Step-by-step explanation:

Huh

PALU UUU 1. (DOK 2) Find the Circumference of the figure. Use 3.14 for T. Round to the nearest tenths place 7.6 m
NO Links please ​

Answers

Answer:

47.7

Step-by-step explanation:

To find the Circumference you have the equation...

C = 2πr     (π= 3.14)   (r= radius r= 7.6)

Plug it in

C = 2 (3.14) 7.6

Multiply

C = 47.728

now round the nearest tenth and tenth place is the first # after the (.)

47.7

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