Solve the system using elimination. Show all work for full credit.
-3x - 3y = 12
3x + 4y = -11
Help me

Answers

Answer 1

Answer:

X=-5, y=1

Step-by-step explanation:

Add 3x+-3x to get 0. You are left with

-3y=12

4y=-11

add together

y=1

substitute1 in either equation to solve for x

-3x-3y=12

-3x-3(1)=12

-3x-3=12

-3x=15

x=-5


Related Questions

Mr. Garcia deposited $2,500 in a new account at his bank.

The bank pays 6.5% interest compounded annually on this account.
Mr. Garcia makes no additional deposits or withdrawals.


Which amount is closest to the balance of the account at the end of 2 years?

A.$2,513.00

B.$2,662.50

C.$2,835.56

D.$2,825.00

Answers

Answer:

$2,825.00

Step-by-step explanation:

First, I found out what 6.5% of 2,500 is, so 6.5% x 2,500 = 162.5 . Then I did 162.5 x 2, which equals 325. I then added 325 to 2,500 and got 2,825.

Please answer.

No links, no fake answers please

Answers

Answer:

The length of the side JH is approximately 31.5 feet long.

Step-by-step explanation:

There is a trigonometry law called the law of sines, which states the sine of an angle divided by its opposite side is equivalent to the sine of all the other angles in that right triangle divided by its corresponding opposite side. You can use this law to help you solve for x. By applying the law of sines, you'll get that [tex]\frac{sin(90^{o})}{88} =\frac{sin(21^{o})}{x}[/tex] ⇒ [tex]\frac{88}{sin(90^{o})} =\frac{x}{sin(21^{o})}[/tex] ⇒ [tex]x = \frac{88*sin(21^{o})}{sin(90^o)}[/tex] ⇒ [tex]x=31.5ft.[/tex]

You know that you want some type of wood flooring. You found these options at the store.

Wood Laminate: $1.65
Engineered Wood: $4.09
Solid wood: $5.59

Calculate the total cost of each material to determine which ones you can afford.
Must show all work.

Answers

Answer:

how much wood do you need

Help! Ive been stuck on this for 2 days!

Answers

Answer:

range = 13

median = 23

mode = none

mean = 22

Step-by-step explanation:

Answer:

mean: 22

median: 23

mode: none

range: 13

Step-by-step explanation:

mean

the mean of a data set is the sum of all the terms divided by how many terms there is, so:

23 + 29 + 25 + 16 + 17 ÷ 5 = 22

median

the median of a data set is the middle number so we arrange in order:

16, 17,  23, 25, 29

23 is the middle, so that's the median

mode

the mode is the number that's repeated the most, there isn't any repeats, so there isn't a mode

range

The range is the lowest value (16) subtracted from the highest value (29)

29 - 16 - 13

hope this helps:)

What is the value of X?

Answers

Answer:

23

Step-by-step explanation:

83+3x+90+x+95= 360

4x= 360-83-90-95

4x= 92

x= 23

A bakery advertised a bag of cookies today for $3.99. Why did the bakery set the price at $3.99 instead of $4.00?

a The bakery needs to get rid of old cookies.
b The bakery wants to improve the reviews on that brand.
c Our brains tend to notice the first digit first.
d We may pay an extra penny at the register.

Answers

The answer is D because at the register they charge you an extra penny to even out the number

Hope this helps !!!

Answer:

C.

Step-by-step explanation:

If you think about it, it makes a little bit of sense. You pay $3.99 for the bag of cookies when the initial price was $4. To you, it sounds cheaper. But you're technically paying the same amount of cash as you would for the previous amount of cookies, as nobody in America keeps 99 cents in their pockets at all times, and 99 cents obviously rounds up to a dollar, so it's technically the same price as before. Overall, this would be essentially just a cheap marketing technique that they're using to get more money out of a larger group of people. If they're trying to get rid of old cookies, they wouldn't lower the price by just a cent, lowering the price by just a cent in order to improve the reviews might as well do the opposite, and paying an extra cent doesn't make much of a difference considering the old price.  So thus the answer is C.

Have a good rest of your day.

HELP giving brainlest and extra points!!!!!

Answers

Answer: 4

Step-by-step explanation:

A wheel has a diameter of 28 inches. What is the approximate distance around the outside of the wheel? Use 3.14 for pi.

Answers

Answer:

43.96

Step-by-step explanation:warning might be wrong

Helppppppnowwwwwwwwwwwwww

Answers

Answer:

X=58

Step-by-step explanation:

Good luck .

Hope this helps u ;)

PLZ!!!!!!
Find the first three iterates of the function f(z) = z2 + c with c = -1, and an initial value of
z0 = 0 - i.

Answers

Answer:

b

Step-by-step explanation:

just guessing  \o/

find the value of x and y​

Answers

Answer:

x=4

y=7

Step-by-step explanation:

x=4 because the left and right sides are equal

the upper side should equal the bottom side

so y+5=12

y=12-5

y=7

Complete the statement. Round to the nearest hundredth if necessary.

40 oz = lb

Answers

40 oz= 2.5 lb

One pound (lb) =16 Ounces
40/16=2.5

Answer:

2 paunds is the answer this is simple math broski

Find the angle with a tangent ratio of 0.9325.
a. 77°
b. 43°
C. 13°
d. 47°

Answers

Answer:

B = 43

Step-by-step explanation:

Answer:B

Step-by-step explanation:

Which are rational numbers check all that are true

Answers

Answer:

All of them except the second one and third one are true .

Answer:

1/3, 3, -1/3

Step-by-step explanation:

A rational number is a number that can be expressed with a fraction. In this case we have:

1/3 , 3 (all natural numbers are also rational: in fact for example 3 can be expressed with the fraction: 3/1) , -1/3

333/0 is not a rational number because the division is impossible

√3 is not rational because can’t be expressed with a fraction

15 - 1/2 x 2 equals 14, but i dont know the steps

Answers

remember PEMDAS - parentheses, exponents, multiply, divide, add, subtract

because multiply come before subtract, your first step would be 1/2 x 2 = 1

next, you subtract -> 15 - 1 = 14

14 is your answer

Identify the horizontal and vertical intercepts of the limacon represented by the equation r=4-6 sin theta.

Answers

Answer:

Vertical intercepts: (-2,pi/2) and (-10,pi/2)

Horizontal intercepts: (4,0) and (-4,0)

Step-by-step explanation:

I took the test and got it right.

The required horizontal intercepts are at approximately (41.81°, 0) and (138.19°, 0), and the vertical intercepts are at (0, 4) and (0, -10).

What is the intercept in the equation?

In the equation intercept is the value of the linear function where either of the variables is zero.

To find the horizontal intercept(s) of the limacon, we need to set r equal to zero and solve for theta.

r = 4 - 6sin(Ф)

0 = 4 - 6sin(Ф)

6sin(Ф) = 4

sin(Ф) = 4/6

sin(Ф) = 2/3

We can use an inverse sine function to find the value of theta:

Ф= sin^-1(2/3)

Ф≈ 41.81° or 138.19°

These are the values of theta where the limacon crosses the x-axis (horizontal intercepts).

To find the vertical intercept(s), we need to set theta equal to zero or pi and solve for r.

When Ф= 0:

r = 4 - 6sin(0)

r = 4

So the limacon intercepts the y-axis at (0, 4).

When Ф= pi:

r = 4 - 6sin(pi)

r = 10

So the limacon intercepts the y-axis at (0, -10).

Therefore, the horizontal intercepts are at approximately (41.81°, 0) and (138.19°, 0), and the vertical intercepts are at (0, 4) and (0, -10).

Learn more about intercept here:
https://brainly.com/question/3605446

#SPJ3

The number of households without a computer at home in 2009 was closest to A)801000 B)1153000 C)1737000 D)3433000 E)4017000

Answers

Answer:

B) 1153000

Step-by-step explanation:

Given

See attachment

Required

Number of households without computer in 2009

From the attachment, we have:

[tex]n=5170000[/tex] --- survey

[tex]p = 22.3\%[/tex] --- proportion without computer

So, the actual number is:

[tex]Number = p * n[/tex]

[tex]Number = 22.3\% * 5170000[/tex]

[tex]Number = 1152910[/tex]

[tex]Number \approx 1153000[/tex]

Hence: (B) is correct

what's the volume of the cone​

Answers

Given:-

[tex] \bullet [/tex] Radius (r) of the cone is 3 ft.

[tex] \bullet [/tex] Height (h) of the cone is 9 ft.

To Find:-

The volume of the cone.

Solution:-

We know,

Formula of Volume of cone is [tex] \frac{1}{3} [/tex]πr²h

So, Volume of the cone = [tex] \frac{1}{3} [/tex] × [tex] \frac{22}{7} [/tex] × (3)² × 9

Volume of the cone = [tex] \frac{1}{3} [/tex] × [tex] \frac{22}{7} [/tex] × 3 × 3 × 9

Volume of the cone = [tex] \frac{22 \: × \: 3 \: × \: 3 \: × \: 9}{3 \: × \: 7} [/tex]

Volume of the cone = [tex] \frac{1782}{21} [/tex]

Volume of the cone = 84.86 cubic ft.

The volume of the cone is 84.86 cubic ft. [Answer]

Lynn is helping her mother make dresses. Each dress takes 3 2/3 yards of fabric. They have one roll of fabric. There are 16 yards of fabric on a roll. What is the maximum number of dresses Lynn and her mother can make before having to buy a second roll of fabric? ​

Answers

Answer:

4 dress will be the max

Step-by-step explanation:

it is a division question

16 yards on a roll ÷ 3⅔ yards of fabric

16÷3⅔

16÷ 11/3

16*3/11

48/11

4.3636

a. A person's height is positively associated with their arm span (the distance between the
ends of the fingertips as arms are held out on each side of the body). One of the tallest
men in history had an arm span measuring 7 inches more than his height. The combined
total of his arm span and height was 221 inches. How tall was this man?

Answers

Answer:

I didn't Sanderstead sorry

If I have three cups of flour to four cups of sugar what is the unit rate?

Answers

0.75 cups of flour to 1 cup of sugar

I’m not fully positive though

Hi could some one please help me on this

Answers

Answer:

A

Step-by-step explanation:

The Pythagorean theorem only works for right triangles. A right triangle has one 90-deg angle. This triangle has no 90-deg angle, so it is not a right triangle, and the Pythagorean theorem does not work to solve it.

Answer: A

couldn't write it out so i took a pic of it

Answers

Answer:

4th is the answer

Step-by-step explanation:

Answer:

the measure of <ABD = 1/2 the measure of <ABC is the answer :)

Step-by-step explanation:

How do I find the measurement of Angle x?

Answers

Answer:

26°

Step-by-step explanation:

The angle 123° is on a straight line. All angles on a straight line add up to 180°, so the first thing you should do is subtract 123 from 180.

(180-123)

Now, your answer should be 57°, and that is equal to angle W.

You now know two angles. Angles in a triangle add up to 180°, too, so all you do now is the following:

97 + 57 = 154

180- 154 + 26

And there's your answer!

You start at (5, -3). You move down 2 units. Where do you end?​

Answers

Answer:

(5, -5)

Step-by-step explanation:

when you move up or down you only change the y axis

Please I need help ASAP ;-;

Image is above

What is the area of the shaded region?

_____ Square units

Answers

Answer:

The area of the shaded region is the difference between the area of the entire polygon and the area of the unshaded part inside the polygon. The area of the shaded part can occur in two ways in polygons.

Step-by-step explanation:

24 divided by the product of 6 and 2

Answers

Answer:

2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

The product of 6 and 2 is twelve and if you divide 24 by 12 the answer is 2

or

6 x 2 = 12  

24 ÷ 12 = 2

answer: 2

Please help me I’m not smart
and this test is due in one hour.

Answers

Answer:

the pitch of the sound

Step-by-step explanation:

because the speed stays the same and the echo has the same variables so i believe it is the pitch

Which survey question has the least amount of bias?
a. Why are vegetables good for you?
b. How many hours of sleep do you get?
C. Do you think the media has a negative role in politics?
d. Why are teen drivers dangerous?

Answers

“Why are vegetables good for you?” This is because the others are all opinionated questions.

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

Answer:

A = 15 u²

Explanation:

according to the coordinates the triangles is right at the pair (2, -3)

the area of the triangle = height × base × 1/2

the height is the line passing through the pairs (-1, 6) and (2, -3)

h² = (2-(-1))²+(-3-6)²

h² = 3² + (-9)²

h² = 9 + 81

h² = 90

h = √90

the base is the line passing through the pairs (5, -2) and (2, -3)

b² = (2-5)²+(-3-(-2))²

b² = 3² + (-3+2)²

b² = 9 + 1

b² = 10

b = √10

A = h×b×1/2

A = √90×√10×1/2

A = √900×1/2

A = 30×1/2

A = 15 u²

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