Solve the system of linear equations. - 3x + 5y = 13 x + 4y = -10 ​

Answers

Answer 1

Answer:

x = -6 and y = -1

Step-by-step explanation:


Related Questions

Hi can you please help me with #11, & 12? Please show all your work.
Thank you in advance

Answers

9514 1404 393

Answer:

  11.  (-4, -1)

  12.  (2, 7)

Step-by-step explanation:

The midpoint is the average of the end point coordinates. For segment AB, the midpoint M is ...

  M = (A+B)/2

If you have A and M, you can find the other end point B from ...

  2M = A+B . . . . multiply the above equation by 2

  B = 2M -A . . . . subtract A from both sides

__

11. The midpoint (M) is ...

  M = ((-1, 2) +(-7, -4))/2 = (-1-7, 2-4)/2 = (-8, -2)/2

  M = (-4, -1)

__

12. The missing end point is ...

  Z = 2Y -X

  Z = 2(-4, 8) -(-10, 9) = (2(-4)+10, 2(8) -9)

  Z = (2, 7)

Describe and correct the error in solving the equation. Help so I can pass math

Answers

Answer:

you subtract seven not add it.

Step-by-step explanation:

jus trust

Answer:

Step-by-step explanation:

Should subtract 7 not add.

x + 7 = 13

  -7      -7

x       = 6.

t-shirts for $2 and shorts for $4. the total sales were $600. they sold four times more tshirts than shorts how many tshirts and shorts did they sell?​

Answers

Answer:

T-shirts: 200

Shorts: 50

Step-by-step explanation:

To solve, set up an equation using two variables to represent the number of t-shirts and shorts sold.  Let x = t-shirts sold. Let y = shorts sold.  2x + 4y = 600.    We know that x will be 4 times greater than y, so we can plug in some guesses that seem reasonable and use the equation to test our theories.  My first guess was 50 shorts, which by luck was the correct answer.  These problems can be tricky, but setting up an equation can prove to be a great help.

I think it’s A but I need help double checking!

Answers

Yea it’s A good work

For what value(s) of x is the expression undefined?
х/(x+2)(x-3)
a) 0, 2, 3
b) -2,3
c) 2, -3
d) -2,-3
Choose

Answers

Answer:

Answer b): -2, 3

Step-by-step explanation:

Recall this is a rational function with vertical asymptotes at the points where the denominator becomes zero. That is:

for x = -2 (that brings x+2 = 0)  and for x = 3 (that brings x - 3 = 0)

Therefore, select answer b).

John makes a commission of 6% when he sells a house how much is john's commission if he is sells a house for $300,000

Answers

Answer:

18,000

Step-by-step explanation:

6% is 0.06

300,000 * 0.06 = 18,000

Answer:

John's commision is $18,000

Step-by-step explanation:

This is is essentially asking what 6% of $300,000 is.

6% in decimal form equals 0.06

You then multiple the decimal to the orginal value.

(0.06)(300,000) = 18,000

John's commision is $18,000

Convert 6 over 15 to a decimal.
0.2
0.3
0.4

Answers

Answer:

0.4

Step-by-step explanation:

just do 6 divided by 15

Answer: 0.4 :)

Step-by-step explanation:

Bir kırtasiyeci aldığı kalemlerin tanesini
2 liradan satarsa 40 lira kâr, 1,5 liradan
satarsa 20 lira zarar ediyor.
Bu kırtasiyeci kaç kalem alıp satmış-
tır?
A) 125 B) 120 C) 115 D) 110​

Answers

Answer: Option B: 120.

Step-by-step explanation:

I will answer in English

This problem can be translated to:

A man bought N pens, (at a cost C) if he sells each pen at 2 lira, he will have a profit of 40 lira.

If he sells each pen at 1.5 lira, he will loss a total of 20 lira.

We want to find N, the number of pens that he bought.

if he sells the N pens at 2 lira each, the revenue is:

N*2 lira

And the profit is the difference between the revenue and the cost, then the profit (40 lira in this case) is:

N*2 lira - C = 40 lira.

When he sells each pen at 1.5 lira the equation is:

N*(1.5 lira) - C = -20 lira.

Then we have two equations:

N*2 lira - C = 40 lira.

N*(1.5 lira) - C = -20 lira.

To solve this we need to isolate the variable C in one of the equations, i will isolate C in the second equation:

N*(1.5 lira) + 20 lira = C.

Now we can replace this in the first equation to get:

N*(2 lira) - (N*(1.5 lira) + 20 lira) = 40 lira.

We can solve this for N.

N*(2 lira) - N*(1.5 lira) - 20 lira = 40 lira

N*(2 lira - 1.5 lira) = 60 lira

N*(0.5 lira) = 60 lira

N = (60lira/0.5lira) = 120

N = 120

This means that he bought 120 pens.

The correct option is B.

4
a. In the box below, type a division sentence for this repeated subtraction sentence.
24 - y - y - y - y - y - y - y - y = 0

Answers

56x y = 19 plus the rounder (45x 20)

28 = 7(n + 3) what does this mean

Answers

Answer:

I don't know the answer to this

7 times 4= 28. so n would equal 1. because 7x(1+3)=28. so n=1. hope that helps

I need an answer for 5/6x4. I appreciate the effort in helping. Sorry im not very good at fractions

Answers

Answer:

3.33

Step-by-step explanation:

Answer:

3 1/3

Step-by-step explanation:

5/6 x 4 = 3 1/3

What is the area of this figure?

Answers

Answer:

75.398

Step-by-step explanation:

Solve for n:
3n + 2n - 17 = 38

Answers

Get all the n together so 3n+2n=5n
5n-17=38
Minus 17 from both sides
5n= 55
N= 11
first you +17 to both sides to get 3n+2n=55
then you do 3n+2n= 5n
so you have 5n=55
so then n=11

Here are eight angles. Which of these angles are obtuse angles?

Enter your answer as a list of letters, separated by commas. For example, if you believe angles A, B, and F are obtuse, type A, B, F.

Help me please. Please, Please!!!

Answers

it’s D, E. this is because an obtuse angle is an angle that is between ninety degrees and 180 degrees. anything smaller would be an acute angle and anything larger would be a reflex angle.
hope this helps :)

The obtuse angles from the given list are D (between 90° to 180°) and E (111° angle). Thus, the answer is D, E.

The angles are given as follows:

A: less than 45°

B: greater than 270°

C: right angle

D: between 90° to 180°

E: A 111° angle

F: A 222° angle

G: A 0.180° angle

H: A 180.180° angle

To identify which angles are obtuse, we need to determine the angles that are greater than 90 degrees but less than 180 degrees.

Among the given angles:

A: less than 45° (not obtuse)

B: greater than 270° (not obtuse)

C: right angle (not obtuse)

D: between 90° to 180° (obtuse)

E: 111° angle (obtuse)

F: 222° angle (not obtuse)

G: 0.180° angle (not obtuse)

H: 180.180° angle (not obtuse)

Therefore, the obtuse angles from the given list are:

D (between 90° to 180°)

E (111° angle)

The answer is D, E.

Learn more about the obtuse angles here:

https://brainly.com/question/30813354

#SPJ4

Would you prefer a high or low-interest rate for a savings account? for a loan? Explain for both.

Answers

explanation:

Low interest rates are better than high interest rates when borrowing money, whether with a credit card or a loan. A low interest rate or APR (annual percentage rate) means you're paying less for the privilege of borrowing over time. High interest rates are only good when you're the lende

-by TheRealMarinette

What is the answer ?​

Answers

B is the wright answer

Pls help this is really important

Answers

Answer:

x = 30 I'm sure hope this helps

The length of a rectangular frame is 4 inches longer than twice the width. If the perimeter is 38 inches, find the dimensions of the frame.
WILL GIVE WHOEVER ANSWERS BRAINIEST

Answers

Answer:

The width of the rectangle is 20 inches, and the length is 36 inches.

Step-by-step explanation:

2(2x-4) + 2x = 112

4x - 8 + 2x = 112

6x - 8 = 112

6x = 120

x = 20

I hope this helps️️

Mila and Ava play a number game. Mila gives Ava a number and she does three computations:

She subtracts 5 from that answer.
She multiplies the number by 2.
Then, she adds 8 to the answer.
What number should Mila give Ava so that the final answer is 92?

Answers

Answer:

Step-by-step explanation:

(x-5)2+8 = 92

2x-10+8 = 92

2x = 94

x = 47

Answer:

Step-by-step explanation:

2(n-5)+8=92

2n-10+8=92

2n-2=92

2n=94

n=47

how do you solve y+1=2x

Answers

y =2x-1

Step-by-step explanation:

turn 12/5 into a mixed fraction​

Answers

Answer:

2 2/5

Step-by-step explanation:

I hope this helps

Set up the division problem in long division format.

5/12

just divide this you should get your answer.

1. f(x) = x^3– 4x^2 – 7x + 10

Answers

9514 1404 393

Answer:

  zeros: {-2, 1, 5}

Step-by-step explanation:

A graphing calculator works nicely for identifying turning points, roots, increasing/decreasing intervals, and more.

A book sold 34,200 copies in its first month of release. Suppose this represents 8.8% of the number of copies sold to date. How many copies have been sold to date?

Answers

388,636.36 copies have been sold

What is the answer
5+7+9+8=

Answers

Answer:

29

Step-by-step explanation:

Find the value of x.
AS
7
х
D
3
B
'c
X=
V[?]
Enter

Answers

9514 1404 393

Answer:

  x = √70

Step-by-step explanation:

The triangles shown are all similar, so corresponding sides are proportional.

  hypotenuse/long side = x/7 = (7+3)/x

Cross-multiplying gives ...

  x^2 = 7(10)

  x = √70

_____

You will note that the value of x (the long side) is the geometric mean of the long segment and the whole hypotenuse.

A similar "geometric mean" relation holds for the short side:

  BC = √(CD·CA)

There is yet another "geometric mean" relation that holds for the altitude:

  BD = √(CD·AD)

You may see these again.

if 8 equals 40 grams how much is 64 grams

Answers

Answer:

320 grams

Step-by-step explanation:

First you find out how much 1 bat ate

40 divided by 8 = 5

So each bat ate 5 insects

Multiply 5 by the 64 bats

64 * 5 = 320

Mark buys 3 2/5 pounds of apples. He uses 2/3 of the apples in a recipe. Which of the following expressions can be used to find the number of pounds of apples that Mark uses? A: 2/3 + 2/3 + 2/3 + 2/5 B: 2/3 x 17 3 x 5 C: 2/3 x 6/5 D: 2/3 x 3 + 2/3 x 2/5

Answers

Answer:

b

Step-by-step explanation:

jayfeather friend me

Janelle is going to buy a new skateboard. The regular price is $165 but she can receive a 30% discount. How much will she pay for the skateboard l if she receives the discount?

Answers

Answer:

$115.5

I have to write 20 characters

1. 8.3 is equal to _____ tenths ______ hundredths
2. 28 is equal to ______ hundredths _______tenths.

Answers

Answer:

8.3 is equal to eight tenths 3 hundredths

28 is equal to 28 tenths.

1.5(a + 2) + 1.5a = 11.7

Answers

Answer:

2.9

Step-by-step explanation:

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