So i dont know what to do but it's systems of linear equations.

So I Dont Know What To Do But It's Systems Of Linear Equations.

Answers

Answer 1

Answer:

the wind is 23 km/h

the speed of the plane without the wind is 135 km/h

Step-by-step explanation:

158-112=46

46/2= 23

112+23= 135


Related Questions


4) The local market is selling % pound of apples for $0.15. How
much is a pound of apples? How many pounds of apple can you
purchase for $1.00?
5) Mary's car can travel 8 miles on 1/5 a gallon of gas. How many
miles can Mary travel on a gallon of gas? How much gas does
Mary's car use for one mile?
6) Tanner finishes 2/5 of his homework every night in 3/5 of an
hour. In how many hours does Tanner finish all of his
homework? How many of his homework does Tanner finish in
one hour?
7) Mandy needs 3/8 a yard of fabric to complete % of a quilt. How
many yard of fabric does she need to complete one quilt?

Answers

I can’t do the 1 pound of apple part but 1.00 can buy 6 apples

5) 40, 0.025 of a gallon per mile

6) 2 hrs , he finishes half his hw in an hr

7) unable to answer

Mark wants to find the circumference of a circle with a diameter of 12 cm. Which expressions can he use to find the circumference of of the circle in centimeters?

Answers

Use this to plug in the numbers:

C = 2 * π * R = 2 * π * 14 = 87.9646 cm

C = Pi or (3.14) times d
Therefore
C = (3.14)d, and C= (3.14)12

Sasha wants to know her average grade on her math tests. She earned a score of 70 on two tests, an 80 on one test, and a 90 on two tests. What is Sasha’s mean score?
A.70
B.75
C.80
D.90

Answers

Answer: c. 80

Step-by-step explanation:

Answer:

80

Step-by-step explanation:

First add all of the the test results 70+70+80+90+90=400 then you divided by how many test their were so 400/5=80

can someone give me answers plzz

Answers

Answer:

I do not understand that so, sorry!

Step-by-step explanation:

Does not make sense

1:38
2:76
3:114
4:152
5:190
Meaning Tim can’t read 200 words in 5 minutes but he can read 190 in 5 minutes I hope it helped? :)

What is the smaller of the numbers 1 and -10/3

Answers

-10/3 is smaller and 1 is bigger.

10.3 is the answer to your question

A cafeteria started with 50 lunches and served 15 per hours whats the equation?

Answers

Answer:

15h+50

Step-by-step explanation:

H stands for hours

15 times number of hours

you start with 50 lunches

Answer:

50+(Hours*15)

Step-by-step explanation:

Start with fifty lunches.

50+(?)

Every hour they serve 15 lunches, so...

50+(Hours*15)

Can someone pls help with this and please explain how u got the answer or you wont receive credit. And this id due in 8 minutes pls help!! I will give brainliest to the person who explains it correctly with more detail.

Answers

Answer:

Answer to A: Each pound of coffee costs $6.32 dollars. Answer to B: He could buy 0.16 pounds of coffee for $1 dollar.

Step-by-step explanation:

For A, we use division. He payed $18.96 dollars for 3 pounds for coffee.

18.96 / 3 = 6.32.

Each pound of coffee costs $6.32 dollars.

For B, we use division Again.

The amount of pounds he could buy for $1 dollar is 0.16 pounds of coffee.

Hope this helps!

If you like it, please mark me as brainiest!

Answer:
Answer to A: Each pound of coffee costs
$6.32 dollars. Answer to B: He could buy
0.16 pounds of coffee for $1 dollar.
Step-by-step explanation:
For A, we use division. He payed $18.96
dollars for 3 pounds for coffee.
18.96 / 3 = 6.32.
Each pound of coffee costs $6.32 dollars.
For B, we use division Again.
The amount of pounds he could buy for $1
dollar is 0.16 pounds of coffee.
Hope this helps!
If you like it, please mark me as brainiest!

The table below shows that 1 day equals 24 hours. Notice that 12 hours is one-half of that. Use the table to help you determine how many days are equal to 42 hours. 1 day 24 hours 12 hours 12 hours (3 points) a 1 and 1 over 4. days b 1 and 1 over 2. days c 1 and 3 over 4. days d 2 days

Answers

Answer:

42 hours is 1 and 18 hours. 42 hours, there are 12 hours 3 R 6  times.

Step-by-step explanation:

42 diviended by 24 is 1 R18.

Then 42 diniended by 12 is 3 R 6.

Answer is “A” because you multiple 12 x 2

i want to sleep. (+20 points lol) question in image

Answers

i m sorry i dont know the answer

let me know if you need help

Answer:

a. 3

b. -10

Hope this helps! I told ya how to do it in comments.

(I choose to write this here because one of the previous answers were deleted, SO i was capable of submitting the answer!)

Help please I will give yu brainlyest if it’s correct

Answers

Answer:

Less than 14.05

Step-by-step explanation:

Answer:

Just answering so the other person can get brainliest

Step-by-step explanation:

What is the value of the expression?
-
olur
1 5
3 6
5
6
Enter your answer in simplest form.

Answers

Answer:

2

-1 5

Step-by-step explanation:

1 5 1

3 6 = 1- 2

2

-1 5

Good luck :)

Help Me Please With This

Answers

Answer:

Step-by-step explanation:

Answer:

The chart is adding by 3

Step-by-step explanation:

She is getting payed $21 for every 5 weeks

So every time she gets payed it adds 3

76,992 divided by 2=

Answers

Answer:

Every number that is even is divisible by 2. 76,992 / 2 = 38496

Step-by-step explanation:

2*3=6 7-6=1

bring down the the 6.

2*8=16-16=0

bring down the 9

2*4=8 9-8=1

bring down the 9

2*9=18 19-18=1

bring down the 2

2*6=12-12=0

=38496

Answer:

38,496

Step-by-step explanation:

Long Division :)

  38, 496

  _______

2| 76,992

   6

   _

   16

   16

    _

    09

      8

      _

       19

       18

       _

        12

        12

         _

         0

what is the slope on an equation

Answers

Answer:

Formula

Slope of a line

Once your equation is in slope-intercept form: "y = mx+b", the coefficient of "x" (the "m") is the slope. The constant (the "b") is the y-intercept at (0, b).

Step-by-step explanation:

slope= dy/dx

=y2-y1/x2-x1

What must be the signs of the coordinate of the point in the graph?

The x coordinate must be? the graph is 4 by 4 the point is one unit to the left of x

The y coordinate must be?

Answers

Question: Hi, I could help you with this question, but is there a graph?

Fill in the next two terms in the pattern. Enter your answers in the boxes.



0.16, 0.35, 0.54,
,

Answers

Answer:

By substracting 0.16 from 0.35, we get 0.19. This is also true when we subtract 0.35 from 0.54. Thus, 0.19 is what we are adding to each previous term to get the next one. When we add 0.19 to 0.54, we get 0.73, and when we add 0.19 to 0.73, we get 0.92. Therefore, the next two terms in the pattern are 0.73 and 0.92.

Step-by-step explanation:

Answer:

0.73 and 0.92

Step-by-step explanation:

The difference of the first 3 is 0.19 per step, so continuing that is 0.73 and then 0.92

2,854 divided by 7= more answers finna be posted

Answers

Answer:

407.714285714

Step-by-step explanation:

BRAINLIEST?

Answer: 407.7142

Step-by-step explanation:

Just use a calculator

A band earns $\frac{2}{3}$
of their profit from selling concert tickets and $\frac{1}{5}$
of their profit from selling merchandise. The band earns $1500 from selling concert tickets. How much money does the band earn from selling merchandise?

Answers

Dividing 2/3 profit of selling concert tickets by 1/5 profit from selling band mechandise.

(2/3) / (1/5) = 10/3 = 3 1/3

Hence band members make 3 1/3 or 10/3 times more profit from ticket sales than from band merchandise sales.

This can be elaborate in such a way also.  

Let suppose the total profit is $30.

then the profit from the ticket sale = 2/3 of 30 = $20

and the profit from the band merchandise sales = 1/5 of 30 = $6

Now dividing 20 by 6, which gives 10/3. the same answer that were calculated above.

Answer this question, and I will give brainleast.

Answers

Answer:

24/25

Step-by-step explanation:

The answer is 24/25

Determine the Prime factorization of each number.
36 b. 120 c. 258 d. 63

Answers

Answer:

36

Step-by-step explanation:

Construct a scatterplot and identify the mathematical model that best fits the data. Assume that the model is to be used only for the scope of the given data and consider only linear, quadratic, logarithmic, exponential, and power models. Use a calculator or computer to obtain the regression equation of the model that best fits the data. You may need to fit several models and compare the values of R2.


y = –477.38 + 237.66 ln x


y = –109.41 + 14.59x


y = 11.46 e1.107x


y = 0.45x1.903

Answers

Answer:

I don't think middle schooler learn this.

Step-by-step explanation:

Which of the following is equivalent to the expression 8(2y + 5)​? Select all that apply.

Answers

Answer: the answer is A and B

Step-by-step explanation: trust me

Answer:

A and B

Step-by-step explanation:

8 times 2 is 16 but since 2 is 2y you add the (Y) to the 16 too making 16y and so 8 times 5 is 40

6x + 50 = 62
What is x?

Answers

6x + 50 = 62

6x = 62 - 50

6x = 12

x = 12/6

x = 2

_____

Hope it helps ⚜

Two school groups go to a roller skating rink. One group pays $243 for 36 admissions and 21 skate rentals. The other group pays $81 for 12 admissions and 7 skate rentals. Let x represent the cost of admission and let y represent the cost of a skate rental. Is there enough information to find values for x and y? Explain.
thxs

Answers

Answer:

No

There are infinitely many solutions to the system.

{36x+21y=24312x+7y=81

Multiply the second equation by 3.

3(12x+7y36x+21y=81)=243

Subtract this new equation from the first equation.

36x+21y−(36x+21y0+0=243=243)=0 true

There are infinitely many values of x and y are possible.

What is the system of equations?

One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.

Given:

Two school groups go to a roller skating rink.

One group pays $243 for 36 admissions and 21 skate rentals.

The other group pays $81 for 12 admissions and 7 skate rentals.

Let x represent the cost of admission and let y represent the cost of a skate rental.

We have a system of equations,

36x + 21y = 243   {equation 1}

12x + 7y = 81        {equation 2}

Simplifying equation 1 we get,

36x + 21y = 243  

Divide by 3,

12x + 7y = 81      

That means, there are infinitely many solutions possible.

Therefore, there are infinitely many solutions possible.

To learn more about the system of equation;

brainly.com/question/13729904

#SPJ2

What is the value of the expression (2/3-5/6)•3/4

Answers

Answer:

-1/8

Step-by-step explanation:

Convert both to have compatible denominators. Subtract, then multiply

Answer:

-0.166× 3/4

=-0.125

(we should start by parantesis then we multiply it)

David wants to purchase some pens. The pens he likes cost $2 each, not including tax. This is represented by the graph below.

Write an equation for the graph of the line.

Answers

Answer:

Step-by-step explanation:

Y = 2x is it I’m pretty sure

Hi friends! Could you help me?

"Use the least common denominator to write an equivalent fraction for each fraction."

5 4
__ __
9' 15

Answers

Answer:

1\5

Step-by-step explanation:

lcm of 9 and 15 = 45

5/45 + 4/45

= 9/45

= 1/5

Please help I need to find the slope. Plus does anyone know how to set my status to high school not middle school?

Answers

Answer:

go to your profile and pick your categories and your grade level

Answer:

You can change your status by clicking on your profile picture on the main page. or setting thing. i forgot. then you click 'edit profile' and you can change your status from there i believe.

Step-by-step explanation:

Please help. :( I will be happy with it.....

Answers

A and D is the right answer
I believe that it’s d

Plssss help me with 5 plsssss im giving out brainliest<33333

Answers

First Row:- 6

Second Row:- 1,3

Third Row:- 4,5,2

Sum of third Row:- 4+5+2=11

First row : 6
Second row:1,3
Third row:4,5,2


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