Please solve with elimination
5x + 9y =-5
3x -8y = -3
help I will give brainliest
please show work

Answers

Answer 1

Answer:

Step-by-step explanation:

5x+9y=-3             Multiply both sides by 8

40x+72y=-24

-53x-8y=-3  Multiply both sides by 9

-477x -72y= -27

sum the equations vertically to eliminate one variable  

40x+72y= -24

-477x-72y= -27       (the y cancels out )

-477x =-51                (-24 + -27=-51)

-477x=-51 / -477       divide both sides by -477

x =51/437

5x 51/437=9y= -3   substitute the value of x

y= -174 /437

(x,y) = (51/437,  -174/437)


Related Questions

Question 1 1 The area of a rectangle is 1 2/3 square feet. The width of the rectangle is 5/6 feet. What is the length of the rectangle? o foot D 11. feet 0 2 feet O2 feet Question 2 1 p

Answers

Answer:

2ft

Step-by-step explanation:

Given parameters:

Area of the rectangle  = [tex]1\frac{2}{3}[/tex]ft²

Width of the rectangle  = [tex]\frac{5}{6}[/tex]ft

Unknown:

Length of the rectangle  = ?

Solution:

The area of a rectangle is given as:

 Area of rectangle  = length x breadth

 Now insert the parameters and solve for length

     [tex]\frac{5}{3}[/tex]   = L x  [tex]\frac{5}{6}[/tex]

        L  =   [tex]\frac{5}{3}[/tex]  x [tex]\frac{6}{5}[/tex]   = 2ft

           

(x - 9)(x - 4)
multiply the binomials

Answers

(X^2-4x-9x+36)
= x^2-13x+36
The answer is x^2 - 13x + 36

A salesperson makes 8% commission on everything she sells. How much money would she make if she sold $200 worth of merchandise?

Answers

Answer:

$16

Step-by-step explanation:

A sales person makes 8% on everything she sells

She sold $200 worth of merchandise

The amount of money that will be made can be calculated as follows

= 8/100 × 200

= 0.08 × 200

= $16

Hence the sales person will make $16

I need some help please i give brainly, thanks and 5 stars

Answers

The answer is either A or C because in 4/5 of an hour half of the tank fills up

Answer:

Pretty sure it's B. 5/8

good luck

Step-by-step explanation:

Nine more than the product of a number and 4 is equal to 7.

Answers

9+4n=7 is the equation


Explanation:


It’s saying product of a number and 4 so we would multiply 4 and a variable (I chose n) then it says nine more than that so you would add that to 4n then it equals 7.

Answer:

equation is 9+(4x) = 7

x = -0.5

Step-by-step explanation:

+ 9 to (4x) equals 7

9 + 4x = 7

4x = -2

x = -0.5

to prove:

9+(-0.5*4) = 7

9 + -2 = 7

7 = 7

You are shopping for a new computer monitor. It is regularly priced at $200 but it is now on sale for 25% off. After the sale discount is applied, you can also use your 20% off coupon. What is the final price?

a. 110
b. 120
c. 130
d. 140

Answers

Answer:

b=120

Step-by-step explanation:

Using proportions, it is found that the final price of the new computer monitor is given by:

b. 120

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

It is regularly priced at $200 but it is now on sale for 25% off, hence 75% of $200 is paid, so:

P1 = 0.75 x 200 = 150.

You can also use your 20% off coupon, hence the final price is of 80% of $150, then:

FP = 0.8 x 150 = $120.

Which means that option B is correct.

More can be learned about proportions at https://brainly.com/question/24372153

#SPJ2

10(x + 4) + 15(x + 1)

55 x
25 x + 5
25 x + 55

Answers

Answer:

Step-by-step explanation:

10(x+4)+15(x+1)

10x+40+15x+15

25x+55

HELPWhich of the following number sentences is an example of the identity property of addition?
16 * 0 = 0
8 + 0 = 8
1x4=4
1+11 = 11 + 1

Answers

Answer:

11+11=11+11 i think

Step-by-step explanation:

The function f(x) is shown on the graph.
If f(x) = 0, what is x?

Answers

Answer:

x = 0

Step-by-step explanation:

Help please Number 4!!! Please show me how you did it!!

Answers

I can’t see nothing

please help. If AE ll BD find the value of y

Answers

Set the first and last equations equal and solve for x. Then the middle plus first equation equal 180

Answer:

I think perhaps maybe Answer D

Step-by-step explanation:

Im taking a class

Which equation is equivalent to n + 4 = 11? *
O (n +4 × 2 = 11
(n + 4) x 2 = 1112
(n+ 4) x 2 = 1184
O (n+4) x 2 = 11 * 2

Answers

Answer:

(n + 4) *2 = 11 * 2

Step-by-step explanation:

(n + 4) *2 = 11 * 2

Divide both sides by 2

[tex]\frac{(n + 4) *2}{2} = \frac{11 * 2}{2}[/tex]

n + 4 = 11

What’s the least common multiple (LCM) for each group of numbers?

Answers

Answer:

A multiple is the result of multiplying a number by an integer. The least common multiple (LCM) of a group of numbers is the smallest number that is a multiple of all the numbers. To find the least common multiple you need to be able to identify the factors of the numbers you are working with.

Step-by-step explanation:

what group of numbers are you talking about?

Answer:

The LCM is the lowest number two numbers share as factors

Step-by-step explanation:

10-1,2,5,10

20-1,2,4,5,10,20

the LCM besides 1 is 2.

Please I need some answers

Answers

Answer:

prime: 17 47 67

Composite: 25 48 99 161 171

25: 1,5,25

48: 1,2,4,6,8,12,24,48

99: 1, 3, 9, 11, 33, 99

161: 1, 7, 23, 16

171: 1,3,9,19,57,171,

And can i please get brainliest and have a good day

what is 1,495 ÷ 45

step by step

without a decimal

Answers

Answer:

Step-by-step explanation:

1495/45

factor out what you can

1495/45=299/9

why...WHY..............

Answers

Answer:

because I said so....that's why

Answer:

BECAUSE TEACHERS WANT US TO SUFFER

Step-by-step explanation:

If the area of a circle is 324 cm, find:
Its circumference in terms of pi

Answers

Answer:

20.3π cm

Step-by-step explanation:

Area of a circle = 324 square cm

    πr² = 324

   [tex]\frac{22}{7}*r^{2}= 324\\\\ r^{2} = \frac{324*7}{22}\\\\ r^{2}= 103.09\\\\ r =\sqrt{103.09}\\\\[/tex]

  r = 10.15 cm

Circumference = 2πr

                         = 2 *  π * 10.15

                         = 20.3π cm

     

four added to twice a number yield 26/5. Find the number.

Answers

Answer:

3/5 is the answer

sry if it's wrong

Answer:

X=3/5

Step-by-step explanation:

Let number=X

Solution

2x+4=26/5

Cross multiply then we get

10x+20=26

10x=26-20

10x=6

X=6/10

X=3/5

So the no is 3/5

Philip can make 125 baskets in 12 days, while Mon can make 132 baskets in 8 days. How many more baskets Philip can make than Mon?

Answers

Answer:

likkeee

Step-by-step explanation:

killing

Answer:

...

Step-by-step explanation:

Philip makes 10.417 baskets a day

Mon makes 16.5 baskets a day

PLEAASE HELPPP whoever solves this will mark brainliest

Answers

Answer:

12

Step-by-step explanation:

Perimeter of ΔABC = 12+ perimeter of ΔACD

Perimeter of ΔABC= AC+CB+BA

Perimeter of ΔACD=AC+CD+DA

But, CB=CD +DB

DA ≅DB since there is a ⊥bisector trough D and

Therefore,

Perimeter of ΔABC= (AC+CD+DA)+BA = Perimeter of ΔACD +12 therefore AB=12

A jacket is advertised to be 80% of the original price. It the original price is $350, what is the sale price?

Answers

Answer:

70$

Step-by-step explanation:

350 - 80%

Answer:

70

Step-by-step explanation:

350*80=28000

28000/100=280

350-280=70

Which is a solution to the equation? (x-3)(x-5) = 35

-8
-5
2
10

Answers

[tex]\huge\boxed{\underline{Your\;answer\;is\;-5}}[/tex]

Answer:

-5

Step-by-step explanation:

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

Answers

Answer:

Step-by-step explanation:

The graph below shows what you are given. The equation is actually y = x-4

Divide $200 in the ratio 3:2. What is the result?
a. $140 : $60
b. $120 $80
c. $80: $120
d. $300 : $200​

Answers

Answer:

b) $120 , $ 80

Step-by-step explanation:

Ratio = 3 :2

Total = 3 + 2 = 5

3/5 of 200 = [tex]\frac{3}{5}*200[/tex]

                  = 3 * 40

                  = $ 120

2/5 of 200 = [tex]\frac{2}{5}*200[/tex]

                 = 2 * 40

                  = $ 80


Suppose you put two white socks and one brown sock in a bag and you
choose one sock without looking. You repeat this 15 times. You pulled the
white sock out 12 times. What is the experimental probability?

Answers

Answer:

That you will most likely always get white.

Step-by-step explanation:

Since they got it 13 times.

Select the expressions that are equivalent to 12n - 8 sellect all that apply .

Answers

Answer:

B,D,and E

Step-by-step explanation:

Its not A bc A is 10n+8

Its not C bc C is 36n-12

Fifty less than four times a number is ten. What is this number?

Answers

Let the number be x.

The equation is:

4x - 50 = 10

=> 4x = 10 + 50

=> 4x = 60

=> x = 60/4

=> x = 15

So, the number is 15.

7x^2-8x+2, what are a,b, and c?

Answers

Answer:

a=7 b=-8 c=2

Step-by-step explanation:

7x²-8x+2=0

a=7 b=-8 c=2

(18 - 6) x (12 - 4) =

Answers

Answer:

96

Step-by-step explanation:

(18-6) x (12-4) =
(12) x (8) =
(18-6) x (12-4) =
96
:)

i think im alright as a person but keeping all these points to get answers from something i gotta do its not alright. but if you want a brainliest answer this question
(Why did 10 not go to thanks giving this year?)

Answers

Answer:

is this a joke or riddle or is this a real question sry?

Step-by-step explanation:

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