PLEASE HELP ASAP!!
Solve the system of linear equations by elimination.
9x+2y=39
6x+13y=-9
( __,___ )

Answers

Answer 1

Answer:

x = 5

y = -3

Step-by-step explanation:

[tex]9x + 2y = 39 \: \: \: \: \: \: \: \: \: (2)\\ 6x + 13y = - 9 \: \: \: \: \: \: \: \: \: \: ( - 3) \\ \\ 18x + 4y = 78 \\ - 18x - 39y = 27 \\ \\ - 35y = 105 \\ y = \frac{105}{ - 35} \\ y = - 3 \\ \\ 9x + 2y = 39 \\ 9x + 2( - 3) = 39 \\ 9x - 6 = 39 \\ 9x = 39 + 6\\ x = \frac{45}{9} \\ x = 5[/tex]

Answer 2

Answer:

5,-3

Step-by-step explanation:

First, you need one of the numbers in front of the variables to be the same in each equation so that you can cancel them out.  so find the lowest number that they both can multiply to.  The lowest number that they can both multiply to is 18.  So this is what the first equation would look like,

2x(9x+2y=39)  

You need to multiply all the numbers in that equation by two

Then multiply the second equation by -3

-3x(6x+13= -9)

So the equations would look like this:

18x+4y=78

-18x-39y=27

________________

Then you need to add them together so you would get

0x (-18+18 cancels it out) -35y=105

Then divide each side by -35 and you'll get

y= -3

Last step,

9x+ 2(-3)= 39

(replace the y with -3 since that was our answer)

add six to both sides and then divide each side by 9 and you'll get

9x-6=39

   +6  +6

_________

9x=45

________

9     9

x=5

(5, -3)

Sorry that i'm a year late btw


Related Questions

Foster is centering a photo that is 1 1/2 inches wide on a scrapbook page that is 14 inches wide. How far from each side of the page should he put the picture? Enter your answer as a mixed number.

Answers

Answer:

The answer would be 4 1/4 (4.25)

10-1.5=8.5/2=4.25

Hope this helps!

Can u please mark me as brainliest? I really need it!

Step-by-step explanation:

WILL GIVE BRAINILEST FOR CORRECT ANSWER!

Why does the troposphere vary in thickness?

Answers

Answer:

Near the equator, the troposphere is thicker than at the poles, since the spinning of the Earth tends to shift air towards the equator.

brainliest maybe?

Step-by-step explanation:

Salma will run less than 35 miles this week. So far, she has run 18 miles. What are the possible numbers of additional miles she will run?
Use t for the number of additional miles she will run.
Write your answer as an inequality solved for t.

Answers

Answer:

We know that Salma will run less than 35 miles in total this week.

So if t represents the number of miles that Salma runs, we have the inequality:

0mi ≤ t < 35 mi

(where the first part comes because she can not run a number of negative miles, but this is trivial.)

We know that she already ran 18 miles, then we have now the inequality:

t + 18mi < 35mi

Now we need to isolate S

t < 35mi - 18mi

t < 17mi

So she can run any number of miles that is smaller than 17 miles.

For example, she could run 10 miles, 14 miles, 4.5 miles, etc.

Malikah saves all of his pennies and nickels. After a year he has a total of 520 coins After counted the coins he had a total of $14.72 How many nickels does he hove?​

Answers

The answer will be 580

Answer:

238 nickels

282 pennies

Step-by-step explanation:

N =Nickels    

P= Pennies

20 nickels = 1 dollar

100 pennies = 1 dollar

N+P = 520

P=( 520-N)

0.05(N) +0.01(520-N) = $14.72

Multiply by 100 to avoid decimals:

5 N +1(520-N) = 1,472

5N +520 -N = 1,472

4N = 952

N = 238  (238/20 = 11.9)  $11.9

520-238 = 282 pennies (=$ 2.82)

238 + 282 = 520

$11.9 + $2.82 = $ 14.72

please help!!!!!! Thanks!!

Answers

Answer:

60

Step-by-step explanation:

Answer:

60

Step-by-step explanation:

Angle on a staright line is 180 degrees so 180 - 120 is 60 degrees and 6y degrees is opposite 60 degrees so 6y is 60

VUGUVI Jamal has 75 oranges and 675 apples. What percentage of the fruit is apples?​

Answers

Answer:90%

i used my calculator but basically i added the numbers up and divided them by 75 which gave me 10% so that is the percent of the oranges so you substracted by the whole (100%) and it gives you the answer, your welcome.

The 90% of the fruit is apples.

What is a percentage?

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Given:

Jamal has 75 oranges and 675 apples.

The total fruits are 750.

Let n be the percentage of the fruit is apples.

So,

675 = n x 750/100

n = 67500/750

n = 90%

Therefore, the percentage is 90%.

To learn more about the percentage;

brainly.com/question/24159063

#SPJ5

I have no idea how to delete a question
This is the anthem
Told the world I need everything and some, yeah
Two girls that's a tandem
She gon' do all it for me when them bands come
Got it all, yeah I'm young, rich, and handsome
Uh, this s is not random
Everybody ain't got it, understand son, yeah
This s is not random
Woah okay
- G easy

Answers

Answer:

you cant

Step-by-step explanation:

good song

This one is less blurry I just did a screenshot

Answers

Answer:

3. 137

4. A, C, E

Step-by-step explanation:

3. If ABC and DEF are similar, the corresponding angles are similar. This means that A = D, B = E, and C = F

Since A = 64, D also equals 64

Then, you have the angle measures of D and F so you can add them to get the angle measure of G.

64 + 73 = 137 degrees.

4. Go through each and see if it works:

A. This is true, it's a triangle rule

C. The interior angles of a triangle always add up to 180

E. Both add up to 180

5. Neither student is correct. Julie isn't correct because the angles are actually all the same, but you don't know if they are congruent because you don't have any side lengths. Ramiro isn't correct because there is enough information to figure out that the 3 angles are the same, meaning that they are similar.

help meeeeeeeeeeeeeeeeeeeeeeee please

Answers

Answer:

Sweet and Sour Company

Step-by-step explanation:

$24/4 gallons=$6/gallon

$16/8 quarts       (divide by 4 cause there's 4 quarts per gallon)=$8/gallon

Answer: Sweet and Sour company is right

Step-by-step explanation:

Find the slope of the lone that passes through (1,1) and (-3,-5)​

Answers

Answer:

3/2

Step-by-step explanation:

change in y over change in x

Answer:

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

Step-by-step explanation:

Use the distance formula (or rise over run)

[tex]\frac{-5-1}{-3-1}=\frac{-6}{-4} =\frac{3}{2}[/tex]

A walking trail is 3.8 miles long. If Gertrude walked the length of the 1 walking trail 13 times, how many miles did Gertrude walk?​

Answers

Answer:

49.4 miles.

Step-by-step explanation:

3.8 × 13 = 49.4 (miles)

$14.00 for 7 minutes
Unit rate

Answers

Answer:

$2/min

Step-by-step explanation:

14 ÷ 7 = 2

Therefore, $2 per minute.

Iiighifvitfbnigcvnjggvbjjj

Dave measures his calculator using erasers and paperclips. It is about 2 erasers long. Which is true?

Answers

Answer:

Step-by-step explanation:

In the US, the most common eraser that is sold are the regular Pink Press erasers. These, as shown in the image below, are roughly 2.2 inches long. The most commonly used paper clip size is about 1.375 inches long. Assuming that these are the items that Dave is using to measure, then we can calculate the size of the calculator which is 2 erasers long...

2.2 + 2.2 = 4.4 inches long

The calculator is roughly 4.4 inches long, we can also divide this number by the length of the paper clip to find out how many paper clips make up the calculators length

4.4 / 1.375 = 3.2 paper clips

2π5= ___.
what does that equal to?

Answers

I really don’t know what this talking about

Answer:

31.4159265

that's what comes up on a calculator

2multiplied by 6y + 3y divided by 3

Answers

Answer and Step-by-step explanation:

= 2×6y+3÷3

= 12y+3÷3

= 15y÷3

= 5y

Hope it help you mark as Brainlist

Bennie and $12.00 per hour as a lifeguard he earns a bonus $75.00 for taking a training course. How much hours must be work to earn at least $399.00

Answers

He must be working at least 27 hours.

Which point on the number line best represents the square root of 6

Answers

Answer:

I don't see the file.

Step-by-step explanation:

Answer:

point 2.44 represents the location of √6 or 2.44 is between 2 and 3

Step-by-step explanation:

ALGEBRA: Sandra Woo delivers flowers. She earns $5.50 to deliver a small arrangement and $8.25 to deliver a large arrangement. Last week she made 52 deliveries and earned a total of $343.75. How many LARGE arrangements did she deliver?

Answers

Answer:

the large arrangement be 21

Step-by-step explanation:

The computation of the large arrangements she delivered is as follows:

Let us assume the small arrangement be x

And, the large arrangement be y

Now as per the question

5.50x + 8.25y = $343.75 ......(1)

x + y = 52........(2)

We can write as

x = 52 - y

Now put the x value in the (1) equation

5.50(52 - y) + 8.25y = $343.75

$286 - 5.50y + 8.25y = $343.75

2.75y = 57.75

y = 21

Hence, the large arrangement be 21

Marcus found a website where gold jerseys cost $150 and blue jerseys cost $50. He plans on spending $300. He is buying 4 jerseys. Use x to represent gold jerseys and y to represent blue jerseys. Write the system of linear equations to represent this situation

Answers

Answer:

150x+50y=300

150(1)+50(3)=300

x+ y=4

Step-by-step explanation:

He is wanting spend 300 he needs to know how many shirts should be sold for each to add to that total. He wants 4 shirts so he needs 3 of the 50 dollars and 1 of the shirts that cost 150.

solve 2x+3+ 4x-1/2 = 10

Answers

Answer:

2 + 3 + 4 − 1 ⋅ 1 2 = 1 0

2 + 3 + 4 − 1 2 = 1 0

Step-by-step explanation:

Can someone help me in math. Please.
Is Algebra.

Answers

Answer:

Step-by-step explanation:

Q6

blank 1 :2

blank 2 :3

blank 3 :2

Q7

blank 1 :3

blank 2 :1

Answer:

y-2=3⋅(x−2)

y-2=3⋅(x+1)

Step-by-step explanation:

assidee has a checking account. If the account balance ever falls below zero, the bank charges her a fee of $5.95 per day. Today, the balance in Kassidee's account is -$2.67. If she does not make any deposits or withdrawals, what will be the balance in her account after 2 days?

Answers

5.95x2= 11.9

-2.67-11.9=-14.57

Her balance aftern2 days will be $-14.57

Solve for n
3n + 2 - 2n + 5 = 17
(Combine like terms then solve.)

Answers

Answer:

n+7=17

n=17-7

n=10

Step-by-step explanation:

is this triangle a SSS, ASA, SAS, AAS, or HL

Answers

Answer:

I think it's a SAS

Step-by-step explanation:

answers to the 2 boxes please :)​

Answers

Answer:

X = - 1

Y = 0

Step-by-step explanation:

Hope this helps u... ^_^
What the guy on top said

Which shape(s) show a decrease in distance overtime?.
ASAP

Answers

Answer:

Heart and moon. They start up and gradually go down, meaning they decrease.

The heart and the moon there each going down so

Choose which function is represented by the graph A. f(x) = (x - 1)(x + 2)(x+5)(x+10)
B. f(x) = (x - 5)(x-2)(x + 1)
C. f(x) = (x - 10)(x - 5)(x - 2)(x+1)
D. f(x) = (x - 1)(x + 2)(x+5)

Answers

Answer:

Option B

Step-by-step explanation:

From the graph attached,

x-intercepts of the graph are x = -1, 2 and 5

y-intercept of the graph is y = 10

Since, x intercepts of a graph define the zeros of the function (y = 0)

Therefore, (x + 1), (x - 2) and (x - 5) are the zero factors of the given graphs.

And the equation of the function will be,

f(x) = a(x + 1)(x - 2)(x - 5)

Since, -intercept of the function is y = 10

Therefore, for x = 0,

y = a(0 + 1)(0 - 2)(0 - 5) = 10

a(10) = 10

a = 1

So the function representing the graph is,

f(x) = (x - 1)(x + 2)(x - 5)

Option B will be the answer.

Find sum of the given polynomials:

(39/8x^2-33/5x)+(24/5x-18/8x^2)

Answers

Answer:

3/40x x (35x-24)

Step-by-step explanation:

hope this helps

The perimeter of a college basketball court is 96m and the length is 14me more than the width. what are the dimesions?​

Answers

Step-by-step explanation:

let width =x

length=x+14

....

perimeter=96=2*(L+W)

96=2*(X+X+14)

96=4x+28

96-28=4x

68=4x

/4

68/4=x

17=x the width

length = 17+14=31m

....

Check

17+17+31+31=96

I hope it's helpful!

Which is equivalent to 12 (33)?​

Answers

Answer:

396

Step-by-step explanation:

it looks like you need to mulitply 12 by 33, which should give you 396?

Answer: 396


Explanation:
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