Solve the system of equations using any appropriate method: 5x + 2y = -4 and -x + 2y = 8
Plz help:(
A)(-2,3)
B)(1,3)
C)(3,2)
D)(6,12)

Answers

Answer 1

Answer:

A

Step-by-step explanation:

-x + 2y = 8

5x + 2y = -4

+ x. -2y. -8

6x = -12

÷6. ÷6

x = -2

5(-2) + 2y = -4

-10 + 2y = -4

+10. +10

2y = 6

÷2. ÷2

y = 3


Related Questions

answer the question below in the image

Answers

void: 240
1000/400 = 2.5
2.5 x 96 = 240

36 is 8 3/4% of what number?

Answers

Answer:

28.8 or 28 8/10

Step-by-step explanation:

A percentage is out of 100. We have to convert 8 3/4 into a percentage. 8 3/4 can also be written as an improper fraction 35/4. Now we have to make the denominator 100. We already knoe that 4 multiplied by 25 equals 100, then we do the same to the numerator. 35 multiplied by 25 gets us to 125. Now we got 125/100. Now since we converted the fracrion into a percentage, now what we do is divide 36 by 125% and that will get you to 28.8 or 28 8/10.

To double check your answer, you can multiply 28.8 by 125% and you will get 36.

help please!!!!!!!!!!

Answers

Answer:

[tex]15 × 10^{0}[/tex]

Step-by-step explanation:

5 × 10^-7 × 3 × 10^6

15 × 10^-1

= 1.5 × 10^0

Answer:

15 × 10^{-1} is the correct

Step-by-step explanation:

what does the numerator of the fraction 10/6 mean?

Answers

Answer:

6

Step-by-step explanation:


The following box plot shows points awarded to dance teams that competed at a recent competition:
Which dot plot best represents the box plot data?

Answers

Answer:

C

Step-by-step explanation:

In the box plot we can see that

minimum points awarded: 0maximum points awarded: 100

then, options B and D are incorrect

The median in the box plot is 70. In option A, the median is 95, and in option C, the median is 70.

In option C, also, Q1 is located at 50 (like in the box plot), and Q3 is located at 95 (like in the box plot)

The dot plot that best represents the box plot data is: C.

The minimum, maximum, and median value of a a data set can easily be determined when the data points are plotted on a box plot or dot plot.

Thus, for the box plot, we have the following:

Minimum = 0Maximum = 100Median = 70

Find the dot plot that has the above values as same with the given box plot:

The dot plot in option C has minimum of 0, maximum of 100, and median of 70, therefore, the dot plot that best represents the box plot data is: C.

Learn more about box plot on:

https://brainly.com/question/14277132

The sum of two numbers is 1633 and their difference is 35 . Find the two numbers.

Answers

Answer:

834 and 799

Step-by-step explanation:

x+y=1633

x-y=35

2x= 1668

x=834

y=799

Hope this helps!

The solution is, the required  two numbers are, 834 and 799.

What is number?

A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers can be represented in language with number words.

here, we have,

given that,

The sum of two numbers is 1633 and their difference is 35 .

let, the two numbers be x & y.

then, we get,

x+y=1633

x-y=35

adding we get,

2x= 1668

x=834

and,

y=799

Hence, The solution is, the required  two numbers are, 834 and 799.

To learn more on number click:

brainly.com/question/17429689

#SPJ2

When a = 6 and b = 22, C * 33. If c vartes directly with b and inversely with a which equation models the situation?
Please helppp

Answers

Answer:

c = 9b/c

Step-by-step explanation:

If c varies directly with b and inversely with a, then this may be written mathematically as;

c = kb/a

Therefore;

k = ac/b

Hence in this case;

k = (6 × 33)/22

  = k

Therefore; the equation connecting the variables is;

c = 9b/a

Click to let others kn

BRAINLIEST ;0

Jen earns $35,650 a year working for an electronics supplier. She is single with no
dependents and pays $1,749.80 in state income tax each year. What is the state's tax
rate?

Answers

Answer: 5% approximately

Step-by-step explanation:

Jen earns $35,650 a year working for an electronics supplier and pays $1,749.80 in state income tax each year. To calculate the income tax rate, we divide the amount paid as tax by her annual income and then multiply by 100. This will be:

= 1749.80/35650 × 100

= 4.91%

= 5% approximately

The state's tax rate is 5%.

What type of function best models the data in this table? Justify your reasoning.

x 2 5 8 11 14 17
y 16 25 34 43 52 61

Answers

Answer:

The function that models the data in this table would be a linear function.

Step-by-step explanation:

161-52=9

7-14=3

9/3=3

52-43=9

14-11=3

9/3=3

it me again I need help

Answers

Answer:

85%

Step-by-step explanation:

He  hit it 17/20

We want that as a percent

Multiply by 5/5

17/20*5/5 = 85/100

Percent means out of 100

85%

Answer:

85

Step-by-step explanation:

P(hit) = 17/20 × 100

85%

A sandwich store charges $20 to have 3 turkey subs delivered and $26 to have 4 delivered. How much does the store charge for 1 additional turkey sub? Describe a rule of determining how much the store charges based on the number of turkey subs delivered

Answers

Answer:

32

Step-by-step explanation:

26+6 =32

help me please......

Answers

Answer:

Step-by-step explanation:

[tex]2^{3}*y^{12} = 8*y^{12}[/tex]

Answer:

Step-by-step explanation:

(2 x y^4)^3=  16y i am not completey sure dont put my awnser

Find the volume of this triangular prism

Answers

Answer:

4608 ft2

To find the volume of a prism, you have to multiply the area*base*height.

So in this case you have (8*8)*8*9.

That results in, 64*8*9.

You multiply them and get 4608 ft2.

Have a nice day!

The given figures are similar. Use the given scale factor to solve for X! Please help

Answers

Answer:

b) 12

Step-by-step explanation:

30/5=3x/6

criss cross the equation to make: 15x=180

move the co-efficient of x to the other side by dividing 180 by 15

so x=12

What is 40.6 in fraction form?
I haven't done math in like 2 weeks and I really need help this is the final exam..



WILL MARK BRAINLIEST. 25 POINTS

Answers

Answer:

40 3/5

203/5

40 6/10

These are all possible answers

Step-by-step explanation:

For every penny Sam puts into his bank, Tara puts 4 pennies into her bank. If Sam puts 4 pennies into his bank, how many pennies does Tara put into her bank?

Answers

Tara puts 16 pennies into her bank because Tara puts 4 times more pennies than tara

Answer:

bruh its 16 pennies

Step-by-step explanation:

1 penny from same=4 pennies from tara

multiply both sides by 4

sam puts in 4 pennies and tara puts in 16

1x4=4

4x4=16

can someone PLEASE help me?

Answers

Answer:

a

Step-by-step explanation:

6ft = 72 inches

72 + 10 = 82 inches

Answer:

6 ft 10 inches

Step-by-step explanation:

82 inches

12 inches = 1 ft

24 inches = 2 ft

36 inches = 3 ft

48 inches = 4 ft

60 inches = 5 ft

72 inches = 6 ft

84 inches = 7ft   too big

we are 6 ft

82 - 72 = 10 inches

6 ft 10 inches

A rectangle has a length that is 12 centimeters longer than its width. Let x represent the width of the rectangle. Which of the following would represent the area of the rectangle?

Answers

Answer:

Step-by-step explanation:

if x is the size of the width, then that means that the length would be x + 12.

now area is = to L * W

that means that (x) * (x+12) = Area

so multiply it out,

you get that x^2 + 12x = Area

Todd has created the following diagram to prove the Pythagorean theorem. He drew (triangle)ABC with leg lengths a and b and hypotenuse length c. Then he drew altitude CZ to the hypotenuse. He determines that c/a=a/z and c/b=b/y. Then he determines that cx=a^2 and cy=b^2. What is the next step in proving the theorem?

Answers

Answer:

cx + cy = a² + b²

Step-by-step explanation:

Next step is adding up cx and cy:

cx + cy = a² + b²

Then followed by:

c(x+y) =  a² + b²c² =  a² + b²

Answer: cx + cy = a² + b²

Step-by-step explanation:

Select the correct answer.
For which function is f(x) equal to f^1(x)?

Answers

Answer:

Hewo!

f(x)=x+1/x-1 would be your function equal to f^1(x).

hope it helps!

Answer:

Step-by-step explanation:

Find the value of x
Thank you it needs to be turned in pronto

Answers

Answer:

Step-by-step explanation:

A+C = 180 = A + 74 -> A = 106

B +D = 180 = B +88 -> D = 92

x = 92

What is the solution to the equation ^3sqrtX+4+ ^3sqrt2X+8=0?
x = –12
x = –4
x = 4
x = 12

Answers

Answer:

Cover 2

Step-by-step explanation:

Answer:

Uhh x is like -4 bruh

Step-by-step explanation:

So b on edge ye

Answer Choices:
y= x + 10; linear
y= x + 10; non linear
y= 10x + 1; linear
y= 10x + 1; nonlinear

Answers

The answer is y=10x+1; linear. Hope that helped!

C. =10x+1

y-intercept is 1 because it is the start up cost. 10 is the factor because it says "$10 a month" The variable x is the months

What is the product of the polynomials below?
(3x^2 - 2x - 3)(5x^2 + 4x + 5)

Answers

Answer:

15x^4+2x^3-8x^2-22x-15

Step-by-step explanation:

Answer:

Your answer is

5x^4+2x^3-8x^2-22x-15

Step-by-step explanation:

I just simplified

What is the slope of the line represented by y=3/4x-1 ? A. –1 B. -3/4 C. 3/4 D. 1

Answers

Answer:

3/4

Step-by-step explanation:

In the above equation the y-intercept is -1 and the slope of the equation is 3/4

Answer:

The answer is C or 3/4.

Step-by-step explanation:

This equation is in point-slope form or Y= mx+b. The variable m represents slope. So, just look for the number that stands in place of m. Hope this helps! Please mark Brainliest! :)

Which statement is the correct solution?

Answers

I believe what answer you have put is correct

The answer you chose is correct

Below are two truths and one lie, choose the lie.

Answers

Answer:

The horizontal asymptote is x-axis

Step-by-step explanation:

The horizontal asymptote is the y axis not x axis

Well so basically the answer is that your life is a lie and all this poop is meaningless

what is the quotient of the equation Below in simplest form? State any restrictions on the variable

Answers

Answer:

A

Step-by-step explanation:

Factor the numerators/ denominators where possible, that is

[tex]\frac{-(x-5)}{(x+4)(x-1)}[/tex] ÷ [tex]\frac{(x-5)(x+3)}{(x+4)(x+1)}[/tex]

Leave the first fraction, change division to multiplication and turn the second fraction upside down.

= [tex]\frac{-(x-5)}{(x+4)(x-1)}[/tex] × [tex]\frac{(x+4)(x+1)}{(x-5)(x+3)}[/tex]

Cancel the factors (x - 5) and (x + 4) from numerator/denominator

= [tex]\frac{-1}{(x-1)}[/tex] × [tex]\frac{(x+1)}{(x+3)}[/tex]

= [tex]\frac{-(x+1)}{(x-1)(x+3)}[/tex] , x ≠ 1, x ≠ - 3

Two different sports teams are doing fundraising to be able to afford their uniforms. The softball team needs to raise $318.12 between the twelve girls on the team. The hockey team needs to raise $391.92 between the 24 boys on the team. If each player raises the same amount of money, does each softball player or hockey player need to raise more? How can estimation help you solve?

Answers

Answer: A softball player will need to raise more.

Step-by-step explanation:

The softball team needs to raise $318.12 among the twelve girls on the team. Each softball player needs to raise:

$318.12 ÷ 12 = $26.51

The hockey team needs to raise $391.92 among the 24 boys on the team. Each hockey player will raise:

$391.92 ÷ 24 = $16.33

A softball player will raise $26.51 while a hockey player will raise $16.33. Therefore, a softball player will need to raise more.

What is the value of this expression when b=5?
6(2b - 4)
Answers:36
12
20
56

Answers

You substitute 5 for b

6(2(5)-4)
6(10-4)
6(6)
36

Answer:

36

Step-by-step explanation:

6 (2b - 4)

6 (2(5) - 4)

6 (10 - 4)

60 - 24 = 36

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