solve the system algebraically (using elimation or substitution method)
4x + 5y = 2
x + 2y = -1

Answers

Answer 1

Answer:

Equation form: x=3, y=-2

Point Form: (3,-2)

Step-by-step explanation:


Related Questions

Weekly wages at a certain factory are
normally distributed with a mean of
$400 and a standard deviation of $50.
Find the probability that a worker
selected at random makes between
$250 and $300.

Answers

The answer should be 2.35

What is the value of X to the nearest tenth??? ​

Answers

Answer:

11

Step-by-step explanation:

Ms.hernandez is taking her children and their friends to the movies. She will pay $10 for her adult tickets and $7 for each child ticket. Ms.Hernandez does not want to spend more than $40. which equality can be used to find c, the number of child tickets ms.hernandez can purchase?

Answers

Answer:

10a + 7c < 40

Step-by-step explanation:

Henry used square papers, each measuring 1 square unit, to tile a rectangle with no gaps or overlaps. He sketched his work as shown. Use the
image to fill in the missing information.

Help need answer today!!!

Answers

Answer:

If you give me the image and what the question is then I will be happy to try and help you in the comments!

Step-by-step explanation:

1. You invest $800 in a 2% savings account.
(a) After three years, how much interest have
you earned?

Answers

Answer:

A the end of three years you would earned $48.96 in interest.

Step-by-step explanation:

a helicopter is bought for 5 million.its value depreciated by 7%each year .how many years wil it take for value to halve​

Answers

Answer:

Number of year = 9.5 year

Step-by-step explanation:

Given:

Initial value[Cost price] = $5,000,000

Depreciation rate[r] = 7% = 0.07

Final value[After depreciation cost] = 5,000,000 / 2 = $2,500,000

Find:

Number of year[After half value]

Computation:

A = p[1-R]ⁿ

Final value = Initial value[1-r]ⁿ

2,500,000 = 5,000,000[1-0.07]ⁿ

0.5 = [0.93]ⁿ

Number of year = 9.5 year

Using any method, find the area of the regular hexagon shown below. Show all work! Your final answer should be exact.

Answers

Answer:

864√3

Step-by-step explanation:

(3√3·24²)/2

1728√3/2

864√3

1496.49189773

9514 1404 393

Answer:

  864√3 in²

Step-by-step explanation:

We presume "any method" includes the use of on-line calculators. Unfortunately, this one does not provide the exact answer in reduced form.

  A = (3/2)√3(24 in)² = 3/2×576×√3 in²

  A = 864√3 in²

What’s the answer for 18 and 19?

Answers

Answer:

18. 3,0 19. 0,5

Step-by-step explanation:

help pleaseee, i need this answer

Answers

Answer:

1. True

2. True (assuming it says divide its circumfrence by pi or 3.14)

3. False

4. False

5. False

Step-by-step explanation:

One is true two is true and the rest are false I think

can someone please help me

Answers

Answer:

B

Step-by-step explanation:

minimum = 1

first quartile = 12

median = 6

third quartile = 16

maximum = 19

whats the answer to this question

Answers

Answer:

a=20

Step-by-step explanation:

7+13=20

20-7=13

Can someone help me pls

Answers

Answer:

69

Step-by-step explanation:

both edges equal 90 degrees

90 plus 90 plus 111 =291

360-291

Which is equivalent to (2 × 5)^4

Answers

Answer:

32/40

Step-by-step explanation:

4x8 and 4x10

To the tenth place, what is the greatest number that rounds to 3

Answers

Answer:

2.99 i think

Step-by-step explanation:

Answer:

show your face

Step-by-step explanation:

Can somebody please help me!!!!

Answers

Answer:

Step-by-step explanation:

that the A on the triangle is pointed in the opposite direction should help you decide what happened.... how far around do you have to turn to be facing in the opposite direction?

if you said  180 ° , you'd be right :)

180 is the green choice, that looks good

Find the area of a circle with radius equal to 2/π

Answers

9514 1404 393

Answer:

  4/π

Step-by-step explanation:

Use the given radius in the formula for the area of a circle.

  A = πr²

  A = π(2/π)² = 4π/π²

  A = 4/π . . . . square units

Gina randomly chooses from three different games to play on her computer: game A, game B, and game C. She generated this table of random combinations to model the situation. The estimated probability that Gina plays at least three games before she plays game a is

Answers

Answer:

The answer is 0.34

Step-by-step explanation:

I'm sorry i don't have an explanation for this. please like this comment is my answer is right

Explanation:

You must find the probability of Gina playing at least three games before playing game A. The phrase “at least three” means “three, four, five, or more.” That means Gina would not play game A in the first two occurrences (n – 1 = 3 – 1 = 2). Search the table for all outcomes that do not have A in the first two occurrences. These occurrences represent the event you’re interested in. Estimate the probability using the formula

.

The answer is 0.34.

Write the slope-intercept inequality for the graph below. If necessary, use <=
for s or >= for 2.
(1,-1)
(2,-5)

Answers

Answer is y<-4x+3
Solve for y=mx+b
M=y2-y1/x2-x1= -5-(-1)/2-1=-4
B=(x=2,y=-5),
-5=-4(2)+b
-5=-8+b
-5+8=-8+8+b
3=b
Line is dotted for < or >, shaded area is underneath line so it’s less than(doesn’t always work just by looking at it) so it’s <
Y<-4x+3

y varies directly as x. When x = 9, y = 27

Find y when x = 27

Answers

Answer:

y/x, 27/9 = 3, 3 = y/27, y = 81.

Step-by-step explanation:

1) The endpoints of AB are A(-3, 8) and B(4,5). If AB is
dilated by a scale factor or 2, what is the slope and length
of A'B?
No links pls!!!

Answers

Answer:

ehhhhhhhhhhhhhhhhhhh


Question 3
The time needed for surgeons to complete a specific knee surgery is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes.
What is the probability that a surgery will last for more than 98 minutes?

0.0010
0.0359
0.9664
0.9641

Answers

Answer:

I would say d.im pretty sure tho

One side of a rectangular yard is bounded by the side of a house. The other three sides are to be fenced with 425 ft of fencing. The length of fence opposite the house is 10 ft less than

either of the other two sides. Find the dimensions (in ft) of the yard.


shorter side ft

longer side ft

Answers

Answer:

Longer side = 145ft

Shorter side = 135ft

Step-by-step explanation:

Here we have a rectangle.

Let's define L as the longest side (the one that is perpendicular to the wall of the house) and S as the shorter side.

We know that the perimeter of a rectangle is:

P = 2*L + 2*S

So if we wanted to fence this rectangle, we would need fencing equal to the perimeter.

But in this case, one of the shorter sides does not need to be fenced, so we only need:

2*L + S of fencing.

And we know that we will use 425ft of fencing, then:

2*L + S = 425 ft

We also know that The length of the fence opposite the house is 10 ft less than  either of the other two sides, then:

S = L - 10ft

Then we have two equations:

2*L + S = 425 ft

S = L - 10ft

Here we can just replace the second equation into the first one to get:

2*L + (L - 10ft) = 425 ft

Now we can solve this for L

2*L + L - 10ft = 425ft

3*L = 425ft + 10ft

3*L = 435ft

L = 435ft/3 = 145ft

This means that the longer side is 145ft long.

And by the equation:

S = L - 10ft

S = 145ft - 10ft = 135ft

S = 135ft

We know that the shorter side is 135ft long.

Exercise 11.1.2: Find the next permutation in lexicographic order. About For each permutation of {1, 2, 3, 4, 5, 6, 7}, give the next largest permutation or indicate that the permutation is the last one in lexicographic order. (a) (1, 2, 3, 4, 5, 6, 7) (b) (7, 6, 5, 4, 3, 2, 1) (c) (1, 7, 6, 4, 2, 3, 5) (d) (3, 7, 6, 5, 4, 2, 1) (e) (5, 4, 7, 6, 3, 2, 1)

Answers

Solution :

A permutation in the field of mathematics may be defined as the arrangement of its members into a linear order or a sequence. However, if a set is already being ordered, then it is the rearrangement of the elements of the set.

In the context, the next largest permutation set is :

a). (1,2,3,4,5,6,7)

b). The given permutation is the last one in the lexicographic order.

c). (1,7,6,4,2,5,3)

d). (4,1,2,3,5,6,7)

e). (5,6,7,4,3,2,1)

The next permutation in lexicographic order will be (5,6,7,4,3,2,1).  

What is a permutation?

It should be noted that a permutation in the field of mathematics where there are several possible ways in which numbers or things can be ordered or arranged.

When applied to numbers, the lexicographic order is increasing numerical order. This is an increasing numerical order from left to right). For example, the permutations of {1,2,3} in lexicographic order are 123, 132, 213, 231, 312, and 321

In the context, the next largest permutation set is (5,6,7,4,3,2,1).

Learn more about permutations on:

https://brainly.com/question/1216161

Write and expression to represent the submarines elevation after its final dive

Answers

Answer is in file explain: sorry if I’m wrong

[tex]\frac{3}{x}+\frac{x}{x+2}[/tex]

Answers

Answer:

[tex]\frac{3}{x}+\frac{x}{x+2}= \frac{x^2+3x+6 }{x^2+2x}[/tex]

Step-by-step explanation:

Given

[tex]\frac{3}{x}+\frac{x}{x+2}[/tex]

Required

Solve

[tex]\frac{3}{x}+\frac{x}{x+2}[/tex]

Take LCM

[tex]\frac{3(x+2) + x * x}{x(x+2)}[/tex]

[tex]\frac{3(x+2) + x^2}{x(x+2)}[/tex]

Open brackets

[tex]\frac{3x+6 + x^2}{x^2+2x}[/tex]

Rewrite as:

[tex]\frac{x^2+3x+6 }{x^2+2x}[/tex]

Hence:

[tex]\frac{3}{x}+\frac{x}{x+2}= \frac{x^2+3x+6 }{x^2+2x}[/tex]

Can someone help me??

Answers

Answer:

1) x represents the # of cranes

  3x represents the # of cranes * 3 minutes

  10 represents the time the centerpiece took

  30 is the time limit

2) x[tex]x\geq \frac{20}{3} or 6\frac{2}{3}[/tex]

Btw, i'm not sure which way the signs go since I learned this a while ago.

Step-by-step explanation:

Good Luck!!!

7.
(6. Linda earns $2538 per month. Billie earns
$32,700 per year. Who earns more, Linda or
Billie?
Answer
& Kart's salary is $30,500 per year. If he gets a
9.

Answers

Answer: Billie earns more.

Step-by-step explanation:

Since Linda earns $2538 per month. We have to calculate her yearly earnings and this will be:

= $2538 × 12

= $30456

Billie earns $32,700 per year. From the calculation above, we can see that Billie earns more than Linda.

Find the exact value of y

Answers

9514 1404 393

Answer:

  y = 27

Step-by-step explanation:

In these similar right triangles, the ratio of long side to short side is the same.

  y/18 = 18/12

  y = 18(18/12)

  y = 27

Evaculate 7/13×8/11. Will be marked brainliest

Answers

Answer:

hahahah Evaculate thats so funny but its 0.3916083916

Step-by-step explanation:

Based on the diagram, what is the length of AC?
A:6.2
B:12.4
C:17
D: 26

Answers

I believe it is D=26 Because angle F,E is equal so A,B B,C are also equal
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