solve the system of linear equations -x+5y=15 -1/5x+y=3​

Answers

Answer 1

Answer:

[tex](0,3)[/tex]

Step-by-step explanation:

[tex]\begin{bmatrix}-\frac{1}{5}\left(15-5y\right)+y=3\end{bmatrix}[/tex]

[tex]\begin{bmatrix}-3+2y=3\end{bmatrix}[/tex]

[tex]+3[/tex]             [tex]+3[/tex]

[tex]2y\f=6[/tex]

÷[tex]2[/tex]     ÷[tex]2[/tex]

[tex]y=3[/tex]

[tex]\mathrm{for\:}x=15-5y[/tex]  [tex]\mathrm{substitute\:}y=3[/tex]

[tex]x=15-5\cdot \:3[/tex]

[tex]5*3=15[/tex]

[tex]15-15=0[/tex]

[tex](x,y)[/tex]

[tex](0,3)[/tex]


Related Questions

Which is the domain of the function f(x) = -5/6(3/5)^x?

Answers

Answer:

All real numbers.

Factors:

Domain is the values that x will takeHere, x can take all the values, negative,positive,fractional any valueHence, domain of the function is all real numbers.

Jill wants to write an equation to determine after how many washes (x) it will take for her laundry soap to be empty . Each wash use 3/4 Oz of soap and the container starts with 60 oz .

Answers

Answer:

Step-by-step explanation:

Need help too

please help this is important for me.

Answers

Answer: point Q is located at (-1, 1)

=================================================

Explanation:

Check out the diagram below.

Plot R(-3,7) and T(3,-11) on the same xy grid.

Draw a vertical line through R and a horizontal line through T. A right triangle forms. At the intersection point is point S(-3,-11)

----------------------

Now measure the distance from point S to point T. You can count out the spaces or subtract the x coordinates and use absolute value.

|x1-x2| = |-3-3| = |-6| = 6

From point S to point T is 6 units.

We want to subdivide this horizontal length in the ratio 1:2

What this means is that we want to plot a point U somewhere such that SU:UT = 1:2

In other words,

SU = x

UT = 2x

SU+UT = ST

x+2x = 6

3x = 6

x = 6/3

x = 2

So we must move 2 spaces to the right from point S to get to U(-1,-11)

Going from point U(-1,-11) to T(3,-11) is 4 spaces

We have SU:UT = 2:4 = 1:2 to help confirm we have the correct location for point U

From point U, we then move straight up to the line segment RT

We'll land on Q(-1,1)

----------------------

Another way to find the y coordinate of point Q is to subdivide the segment RS into the ratio 1:2 similar to how we divided ST up

Segment RS is 18 units long since we go from y = 7 to y = -11 when going from R to S.

If V was on segment RS such that

RV:VS = 1:2

and RV = y

then

RV+VS = RS

y+2y = 18

3y = 18

y = 6

RV = y = 6

VS = 2y = 2*6 = 12

So you'll move 6 units down from y = 7 to land on y = 1 (when going from the y coordinate of R to the y coordinate of Q)

Flat prats of solid figure

Answers

Answer:

it's known as a face

BRAINLIEST

3/4 x 1/6
I don’t get it??

Answers

Answer:

[tex]\frac{3*1}{4*6} = \frac{3}{24} = \frac{1}{8}[/tex]

Step-by-step explanation:

If you cross multiply, the equation will simplify:
3/4 x 1/6 =

1/4 x 1/2=

1/8

PLEASE ANSWER THIS ASAP !!!!!

Answers

Answer:

-22

Step-by-step explanation:

First, you must find the values for f(-8) and g(2).  f(x) is the blue line so f(-8)=-2 because that is the value of y where x=-8.  g(x) is the pink dotted line so g(2)=-4 because that is the value of y where x=2.  Then, plug in and solve:

-3(-2)+7(-4)

6+-28

6-28

-22

Hope this helps!!

How should I get rid of the 5

A divide by 5

B multiply by 5

Answers

Divide by 5, if question is a multiplication

But, multiply by 5 if question is based on division.

So, you're basically doing the inverse, of the operations you've been given.

For example:

x/5 = 2

x5 ( Multiply by 5)

x = 10

3 x y = 12

÷3

y = 4

Hope this helps!

A bag of flour has a mass of 2.26 kg. In grams, its mass is 2,260 g.
A. True
B. False
C. None of the above

Answers

Answer:

A. True

Step-by-step explanation:

This statement is true because 1.0 kg. is equal to 1,000 grams. If we multiply 2.26x1,000, you get 2,260g.

What is the 9x6x64= I need help

Answers

Answer:

the answer is 3,456 I hope it helps

two equal sides of triangle are 3cm more than three times the third side find the sides of the triangle if its perimeter is 21 CM​

Answers

Answer:

Step-by-step explanation:

Which expression is equivalent to 1/2(16x+2)+5?

Answers

Answer:

8x + 6

Step-by-step explanation:

1/2(16x + 2) + 5

(1/2 × 16x + 1/2 × 2) + 5

8x + 1 + 5

8x + 6

That should be the answer.

Use the given property to complete the statement. Division Property of EqualityIf 2(AX) = 4(BY), then AX

Answers

Answer:BY  is the answer

Type in the answer like when you click and drag the answer in the empty boxes where the answers go

Answers

A- y=2+6
B- y=-2+8
C- y=3x+4
D- y=-1/2+6

Please mark brainliest!

187 minutes and is broken into two parts. The second part of the movie is 11 minutes langer than the first part. How many minutes is Part 2?​

Answers

Answer:

  99 minutes

Step-by-step explanation:

Let the variable x represent the longer part of the movie. Then the shorter part is (x-11) and the total length is the sum of the parts:

  187 = x +(x -11)

  198 = 2x

  x = 99

The length of Part 2 is 99 minutes.

Please help me find the y-intercept, slope, and how I should write out the equation in y=mx+b form.

Answers

Answer:

m = -1/2 b = 4, equation = y = -1/2x + 4, Proportional, Negative slope

Step-by-step explanation:

To find m, see what slope is:

Is negative

for every one to right, goes down 1/2

so -1/2

Intercepts at 4, so b = 4

A mountain climber started at 150 feet below sea level. What would he
need to climb to so that his starting spot and his ending spot were
opposites?

Answers

Answer:

3150 feet for both

Step-by-step explanation:

correct?

randy read a book in the afternoon. He looked at his watch when he started and finished reading. How long did randy read?

Answers

Answer:

Is this a joke?

Step-by-step explanation:

Please tell me this is.

Work out these calculations.
Use the priority of operations.
Use a calculator to check your answers.

Answers

Answer:

a) 961   b)37

Step-by-step explanation:

a) (5² + √36)²= (25+6)²= 31²=961

b) 4³ - (5-2)³= 64-3³= 64-27= 37

A would be 31^2 or 961
B would be 37



A. Perimeter       
B. Scale     
C. Dimensions


1.    The length and width of an object are _______.
2.    The distance around a figure is called the _________.
3.    1 square to 25 cm is an example of a _______.

Answers

1: Perimeter
2:Dimensions
3:scale

number one is c two is a 3 is b

Find (a) PQ to the nearest tenth and (b) the coordinates of the midpoint of PQ.
P(5,-4), Q(6,-5)
(a) PQ=(Round to the nearest tenth as needed.)

Answers

Ueueueueujehdjdjdjdjdjjfjfjfjrjrjrtep-by-step explanation:j

Steven and Bob both have a Pokemon card collection. The number of Pokemon cards in Steven's collection can be represented by x. The number of cards in Bob's collection is 4 times the amount in Steven's collection. The total number of Pokemon cards in both collections is 240. What is the number of cards in Steven's collection?

Answers

Answer: 48

Step-by-step explanation:

The number of Pokemon cards in Steven's collection = x

The number of cards in Bob's collection is 4 times the amount in Steven's collection= 4x

The total number of Pokemon cards in both collections = 240

x + 4x = 240

5x = 240

x = 240/5

x = 48

The number of cards in Steven's collection is 48

A dress usually sells for $64.00. If the dress is 30% off, what is the total price of the dress (excluding tax)?

Answers

Answer:

$44.8

Step-by-step explanation:

M is directly proportional to L^3
When L = 2, M= 160
Find the value of M when L = 3

Answers

Answer:

2,160

Step-by-step explanation: since M is proportional to L^3 so when L=2 then L^3=8 so M=160 which means if L = 3

When L = 3, the value of M is 540. The relationship between M and L³ holds true.

When two variables, M and L, are directly proportional, it means that their ratio remains constant.

In this case, M is directly proportional to L³, which can be written as M = k × L³, where k is the constant of proportionality.

To find the value of k, we can use the given information when L = 2, and M = 160:

160 = k × 2³

160 = k × 8

k = 160 / 8

k = 20

Now that we have the value of k, we can find the value of M when L = 3:

M = 20 × 3³

M = 20 × 27

M = 540

So, when L = 3, the value of M is 540. The relationship between M and L³ holds true for any value of L when multiplied by the constant of proportionality k, which we found to be 20 in this case.

To learn more about the proportional relationship;

brainly.com/question/28777033

#SPJ3

Graph this function,
f (x) = 2x-4

Please help me ASAP​

Answers

Answer:

slope= 2 I case you need that :)

Answer:

Below.

Step-by-step explanation:

One way is to plot some points:

When x = 0, y = 2(0) - 4 = 4  So plot (0,-4).

In a similar way you can plot  when x = 1, y = 2(1) - 4 = -2 that is (1, -2).

Also 2(3) - 4 giving the point (3, 2).

Now draw a line passing through these 3 points.

If you cant draw a line through these points then Ive made a mistake in the calculations

which 3d object does the net at the right form?
a. cube
b. rectangular prism
c. triangular prism
d. none of the above

Answers

Answer:

A. Cube

Step-by-step explanation:

All sides seem to be perfect squares, making this a cube

What is the lenght of the side opposite the 30 degree angle?

Answers

Answer: 60 degrees

Step-by-step explanation:

a triangle has a interior sum of 180°
90 + 30 = 120

180 - 120 = 60

For all real numbers, x^2 ≥x.
Which number is a counterexample to the statement?

A) 1
B) 2
C) 3
D) 1/2
E) 4

Answers

1/2 because it is a fraction

Answer:

1/2

Step-by-step explanation:

took the test

Help with this question please

Answers

Answer: Isosceles, acute

Step-by-step explanation:

Which number line shows the solution to 2/3x - 5 > 3

Answers

Answer:

Step-by-step explanation:

Garrett had 72 MegaChoc Bars and 64 Caramel Melties. He wanted to put the most candy bars possible into bags without mixing the two types. Each bag needed an equal amount of candy. How many candy bars did he put in each bag? A. 6 candy bars B. 7 candy bars C. 8 candy bars D. 9 candy bars

Answers

Answer: Garrett tenía 72 barras MegaChoc y 64 Caramel Melties. Quería poner la mayor cantidad posible de barras de caramelo en bolsas sin mezclar los dos tipos. Cada bolsa necesitaba la misma cantidad de dulces. ¿Cuántas barras de chocolate puso en cada bolsa? A. 6 barras de dulce B. 7 barras de dulce C. 8 barras de dulce D. 9 barras de dulce

Step-by-step explanation: A

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