Solve 5x-3y =1,
3x-y=5.

Answers

Answer 1

Answer:

Below in bold.

Step-by-step explanation:

5x - 3y = 1

3x- y = 5                    Multiply this equation by -3:

-9x + 3y = -15            Now add this equation to the first equation:

-4x = -14

x = -14/-4 = 3.5.

Now substitute for x in equation 1:

5(3.5) - 3y = 1

-3y = 1 - 17.5

-3y = -16.5

y = 5.5.


Related Questions

Please help I don’t understand

Answers

Answer:

_____

Step-by-step explanation:

its saying that the height of the tree is half of 160

(i think)

There are 32 members of the track team. 8 of those students are seventh graders. What percent are seventh graders?

Answers

Answer:

25%

Step-by-step explanation:

8/32 reduced to 1/4. he fraction 1/4 is equal to 25%.

Hope this helps!

15 POINTS PLEASE ANSWER

What equation can be used to find the following: "9 is 45% of what number"

Answers

20 is the answer
9/.45

Answer:

20

Step-by-step explanation:

45% of x=9

x=9/0.45 = 20

a can contains 24 fluid onces of fruit juice . how many pints of fruit juice does the can contain
A. 3 pt
B. 1 1/2 pt
C. 12 pt
D. 1/3 pt

Answers

Answer:

B 1 1/2 pts

4 fluid ounces = 0.25 pints

24 fluid ounces = 6 pt

I think it's B!!! Sorry if I'm wrong

Figure 15) Find x 16) Find m∠E

Answers

Answer:

Figure needed

GOOD LUCK FOR THE FUTURE! :)

HELP ASAPPPP!!!!! NOW NOW NOW

Answers

Answer:

The answer is 4.

Step-by-step explanation:

If you put four dashes on the number line, you will end up with fifths.

Answer:

4

Step-by-step explanation: A general rule of thumb is that the answer for these types of problems is always 1 less than the number of segments needed. For example, 7ths would = 6 cuts and 3rds would be 2 cuts.

In a team, the ratio of attackers : defenders is 11:7.

Given that there are 36 players in the squad, how many more attackers are there than defenders?

fast answers pls

Answers

Answer:

8 more attackers than defenders

Step-by-step explanation:

36÷18=2

2x11=22

2x7=14

Answer:

8

Step-by-step explanation:

sum the parts of the ratio, 11 + 7 = 18 parts

Divide the number of players by 18 to find the value of one part of the ratio

36 ÷ 18 = 2 players ← value of 1 part of the ratio, then

11 parts = 11 × 2 = 22 ← number of attackers

7 parts = 7 × 2 = 14 ← number of defenders

22 - 14 = 8

There are 8 more attackers than defenders

A coin is tossed on two successive times. I) Write the sample space ii) P( getting exactly one head) iii) P( getting no heads) iv) P( getting at least one tail) SECTION C : Question 21 – 30 carry 3 marks

Answers

Given : A coin is tossed two times successively.

Solution:

Formula used: Probability = [tex]\frac{\text{number of outcome}}{\text{total number of outcome}}[/tex]

(i) Sample space

[tex]HH\\HT\\TH\\TT\\[/tex]

(ii) P( getting exactly one head) = [tex]\frac{2}{4}= \frac{1}{2}[/tex]

(iii) P( getting no heads)=[tex]\frac{1}{4}[/tex]

(iv)P( getting at least one tail)=[tex]\frac{3}{4}[/tex]

How do you find the distance in between two points on a graph?

Answers

Answer:

You need to use the distance formula

which is: d=√((x_2-x_1)²+(y_2-y_1)²)

Step-by-step explanation:

30 points available will give brainliest plz helpp need soon
i need it quick

Answers

Answer:

90

hope it's helpful

THANK YOU.

Answer:

90

Step-by-step explanation:

p.l.z give brainliest i lost all my brainliest

did u find an answer cause I need it lol

Answers

Of what i can help if you tell about it

you move right 1 unit and left 3 units. you end at (-4,0). where did u start?

Answers

Answer:

(2,-4)

Step-by-step explanation:

you see (-4,0), then you do the opposite of what it says like it says right 1 unit. then you g left 1 unit. then it says left 3 units. so you go right 3, which results you starting at (2.-4)

Your correct answer should be 2 and -4

Leah has just inherited $12,000. She wants to invest the money so that she can increase the value of
her inheritance. What are some of the ways she can do this?
1. Leah wants to invest the $12,000 in an account that pays 4.5% annual interest.
a. Write equations for the amount A(t) that will be in the account after t years, if the interest is
compounded continuously, daily, and monthly. Then, find the amount after 10 years, rounded
to the nearest cent, for each method of compounding. Complete the table

Answers

When interset compounded continuously so the amount after 10 years the amount will be $18819.75, when n = 365 and t = 10 years amount will be $18819.22, when n = 12 and t = 10 years amount will be $18803.91.

What is compound interest?

It is defined as the interest on the principal value or deposit and the interest which is gained on the principal value in the previous year.

We can calculate the compound interest using the below formula:

[tex]\rm A = P(1+\dfrac{r}{n})^{nt}[/tex]

Where A = Final amount

          P = Principal amount

          r  = annual rate of interest

          n = how many times interest is compounded per year

          t = How long the money is deposited or borrowed (in years)

If the interest compounded continuously:

P = $12000, r = 4.5% = 0.045%

[tex]\rm A(t) =12000(e)^{0.045t}[/tex]

When t = 10 years, plug this value in the above expression and calculating, we get;

A(10) = $18819.75

When interest compounded daily:

[tex]\rm A(t) = 12000(1+\dfrac{0.045}{365})^{365t}[/tex]

Plug t = 10 years:

We get;

A(10) = $18819.22

Similarly,

If interest is compounded monthly:

n = 12 and t =10, we get:

A(10) = $18803.91

Thus, when interset compounded continuously so the amount after 10 years the amount will be $18819.75, when n = 365 and t = 10 years amount will be $18819.22, when n = 12 and t = 10 years amount will be $18803.91.

Learn more about the compound interest here:

brainly.com/question/26457073

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HELP FOR BOTH PLEASEE!!!!

Answers

Answer:

7) Option A

10) Option J

Step-by-step explanation:

7). From the graph attached,

  Coordinates of S → (-5, 6)

  Coordinates of U → (2, -6)

  If the given points are reflected by the rule,

  (x, y) → (-x, y)

  [Change the sign of x - coordinates of S and U]

  Coordinates of S' → (5, 6)

  Coordinates of U' → (-2, -6)

  Option A will be the answer.

10). Coordinates of the vertices of the ΔXYZ,

   X → (6, 9)

   Y → (9, 5)

   Z → (4, 5)

If the vertices of this triangle are translated 3 units left and 4 units down,

  Rule for the image points will be,

  (x, y) → (x - 3, y - 4)

  By this rule coordinates of the image points will be,

  X(6, 9) → X'(3, 5)

  Y(9, 5) → Y'(6, 1)

  Z(4, 5) → Z'(1, 1)

Therefore, Option J will be the answer.

2. Create a problem and draw a strip diagram to go with
the following equation: 85 - (2 x 18) = 49

Answers

85-36 = 49
49= 49
Infinite solutions

which expression is equivalent to (3b+2r)+(4b+r)​

Answers

I think that it’s 7b + 3r.

Answer:

7b+3r

Step-by-step explanation:

Combine all like terms

Eber ran 3 miles. He stopped to take a break every 34 mile. How many times did Eber stop, including his final stop at the end of his run? Use the model to help you answer this question.

Answers

144 because when you divide them and simplify

The number of times that Eber stop, including his final stop at the end of his run, will be 4 times.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

Eber ran 3 miles. He stopped to take a break every 3/4 mile.

Then the number of times that Eber stop, including his final stop at the end of his run, will be given as,

⇒ 3 ÷ (3/4)

⇒ 3 x (4 / 3)

⇒ 4 times

The number of times that Eber stop, including his final stop at the end of his run, will be 4 times.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ5

PLS HELPPP I HAVE NO IDEA WHICH ONE IT IS

Answers

Answer:

2(t) or 2 * t

Step-by-step explanation:

Both of those are multiplying 2 and t, which is also what 2t means.

The measures of the angles of a triangle are shown in the figure below. Solve for x.

Answers

The answer is x=9

8x-15+90+33=180
x=9

4 Solve the system graphically. y=2/3-4 y=-1x+1

Answers

Answer:

Y = -10/3 X = 13/3

Step-by-step explanation:

Look at the graph.

what is 33 times 19 :P

Answers

Answer:

627 :P

Step-by-step explanation:

Factor the trionomial below. x^2 + 6x - 27

Answers

Answer:

(x−3)(x+9)

Step-by-step explanation:

The middle number is 6 and the last number is -27.

Factoring means we want something like

(x+_)(x+_)

Which numbers go in the blanks?

We need two numbers that...

Add together to get 6

Multiply together to get -27

Can you think of the two numbers?

Try -3 and 9:

-3+9 = 6

-3*9 = -27

Fill in the blanks in

(x+_)(x+_)

with -3 and 9 to get...

(x-3)(x+9)

I need help with this question quick please!!

Answers

the length would be 12

Please help!! Find the value of x.
6
8
A
D
4
x = [?]
Enter

Answers

Answer:

3

Step-by-step explanation:

By angle bisector property:

[tex] \frac{6}{x} = \frac{8}{4} \\ \\ \frac{6}{x} = 2 \\ \\ x = \frac{6}{2} \\ \\ x = 3[/tex]

The value of given triangle of x is 3.

Angle bisector theorem states that an angle bisector of a triangle divides the opposite side into two segments that are proportional to the other two sides of the triangle. An angle bisector is a ray that divides a given angle into two angles of equal measures.

We have the given triangle is:

The triangle is ABC

and divide into two parts.

Triangle ADC and Triangle CBD.

The value also given in the figure.

AB = 6

BC = 8

AD = x

DC = 4

We have to find the value of x:

By using the Angle bisector theorem :

[tex]\frac{AB}{AD} =\frac{BC}{DC}[/tex]

Plug all the values in above formula:

[tex]\frac{6}{x}=\frac{8}{4}[/tex]

=> 6/x = 2

x = 6/2

x= 3

The value of given triangle of x is 3

Learn more about Angle bisector theorem at:

https://brainly.com/question/31330246

#SPJ2

4. Mary wants to select one shirt (white, red, black), one pant (capri,
skinny), and one footwear (shoes, boots). Which outcome is not
possible? *
A white shirt, capri pant, shoes
B red shirt, skinny pant, boots
C blue shirt, capri pant, boots
Dblack shirt, skinny pant, shoes

Answers

C blue shirt, capri pants, boots

because the blue color is not on there

Answer:

B red shirt, skining pant, boots

Could someone help me with these?

Answers

Answer:

i cant see is

Step-by-step explanation:

The first one is SIDE SIDE SIDE(SSS),
The answer to b is SIDE SIDE ANGLE (SSA)

What is the vertex angle

Answers

Answer:

sssssßssssssssssßsssssssss

Answer:

In geometry, a vertex angle is an angle associated with a vertex of an n-dimensional polytope. Often a vertex angle of a polygon is referred to simply as an angle of the polygon.

What is the measure of XZW

Answers

Answer:

∠XZW = 95°

Step-by-step explanation:

∠YXZ = 180 - 150

∠YXZ = 30°

∠XZY = 180 - (30+65)

∠XZY = 180 - 95

∠XZY = 85°

∠XZW = 180 - 85

∠XZW = 95°

H E L P- A G A I N (im dum ok? also no scam answers please.)

Answers

Answer:

a.Equation :y=40-2.5x

b.straight, decreases, the same

Step-by-step explanation:

4 points
Untitled Question
Kimberly is asked to find mZM. What is her error?
N
sin M _ sin
16 10
sin M=
16.sin 33"
10
16
10
m2M = 0.8714
X Х
33
M
What is Kimberly's error?
A Kimberly did not find the inverse cosine of the value she calculated.
OB. Kimberly did not find the inverse sine of the value she calculated.
OC. Kimberly found the measure of angle N, not M.
D. Kimberly made a computational error.
E Kimberly did not apply the Law of Sines correctly
А

Answers

Answer:

The error is;

B. Kimberly did not find the inverse sine of the value she calculated

Step-by-step explanation:

The given parameters of the triangle ΔLMN are;

[tex]\overline {LN}[/tex] = 16

[tex]\overline {NM}[/tex] = 10

∠L = 33°

By sine rule, we have;

[tex]\dfrac{sin \ M}{16} = \dfrac{sin \ L}{10} = \dfrac{sin \ N}{\overline {LM}}[/tex]

Given that ∠L = 33°, we have;

[tex]\dfrac{sin \ M}{16} = \dfrac{sin \ 33^{\circ}}{10}[/tex]

Therefore, we have;

[tex]sin \ M = 16 \times \dfrac{sin \ 33^{\circ}}{10} \approx 0.8714[/tex]

sin M ≈ 0.8714

[tex]\therefore m \angle M = sin^{-1} \, (sin \ M)\approx sin^{-1} (0.8714) \approx 60.62^{\circ}[/tex]

Therefore, m∠M ≈ 60.62°

m∠M ≠ sin M ≈ 0.8714

Therefore;

Kimberly did not find the inverse sine (sin⁻¹) of the value she calculated

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