Solve using substitution.

x + y = 9
–5x + 3y = 19

Answers

Answer 1

Answer:

(1,8)

Step-by-step explanation:

please mark me as brainliest thank you


Related Questions

Steve is creating a web page. He starts with a font of 5 9/10 points and decreases it by 1/2. He decreases it again by 6/10 points. Steve then realizes that the font is to small to read easily and increases it by 1 4/5 points. Which is the best estimate of the font's final size?

Answers

Answer:

6 3/5 points

Step-by-step explanation:

Steve is creating a web page.

Step 1

He starts with a font of 5 9/10 points and decreases it by 1/2.

Hence: Current font

= 5 9/10 - 1/2

= 5 + ( 9/10 - 1/2)

Lowest common denominator

= 10

= 5 + (9 - 5/10)

= 5 + 4/10

= 5 + 2/5

= 5 2/5 points

Step 2

He decreases it again by 6/10 points.

Current fonts

= 5 2/5 - 6/10

= 5 + ( 2/5 - 6/10)

Lowest common denominator

= 10

= 5 + (4 - 6/10)

= 5 + (-2/10)

= 5 - 1/5

= 4 4/5 points

Step 3

Steve then realizes that the font is to small to read easily and increases it by 1 4/5 points.

New font

= 4 4/5 points + 1 4/5 points

Lowest common denominator = 5

= 4 + 1 + (4/5 + 4/5)

= 5+ ( 4 + 4/5)

= 5 +(8/5)

= 6 3/5 points

The best estimate of the font's final size is 6 3/5 points

Which mathematical property is demonstrated?

7 + 9 + 3 = 7 + 3 + 9


commutative property of addition

associative property of multiplication

commutative property of multiplication

associative property of addition

Answers

Answer:

I am pretty sure that the answer to this question is A: comunative property of addition

Step-by-step explanation:

I'm 99% sure

I'm sorry if it turns out to be wrong

cause I have not yet finished the test

solve for x in the equation (x + 7) (x minus 9) = 25

Answers

Answer:

10.43398113

Step-by-step explanation:

decimal for

20% of 260 students at hill middle school ride a bus to school. how many students ride a bus to school?

Answers

Answer:

52 students ride a bus to school

Step-by-step explanation:

Step 1: Our output value is 260.

Step 2: We represent the unknown value with x.

Step 3:  From step 1 above $260 = 100%.

Step 4: Similarly, x = 20%.

Step 5: This results in a pair of simple equations:

260 = 100%(1).

x = 20%(2).

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

equations have the same unit (%); we have

[tex]\frac{260}{x}[/tex] = [tex]\frac{100}{20}[/tex]%

Step 7: Again, the reciprocal of both sides gives

[tex]\frac{x}{260}[/tex] = [tex]\frac{20}{100}[/tex]

⇒x=52$

Therefore, 20% of 260 is 52.

Hope this helps! :)

BRAINLIEST PLEASEEE

The number of students who ride a bus is 52.

What is a percentage?

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Total number of students = 260

The number of students who ride a bus.

= 20% of 260

= 1/5 x 260

= 52

Thus,

The number of students who ride a bus is 52.

Learn more about percentages here:

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What is the answer to this?

Answers

Answer:

The answer is (1,-5)! Try using Desmos graphing calculator next time as well :)

Step-by-step explanation:

What is valué of the x-coordínate that is 9 units to the left (5,-8)

Answers

Answer: -4

Step-by-step explanation:

For a school fund-raiser, 10 students sold a total of 90 boxes of cookies. Which of the following can be calculated from this information?​

Answers

Answer: what of the following

Step-by-step explanation:

Answer:

is it multiple choice

Step-by-step explanation:

At the nearest wholesale 3 bags of cereal cost 28.75 at this rate how much would 5 bags of cereal cost

Answers

Answer:

5 bags will cost $47.09

Step-by-step explanation:

Hope this helped have an amazing day/month/year!

28.75/3=9.58
9.58*5=47.9
So the answer is 47.9

27) Solve: x – 9 = 20



28) Solve: 1/3 x 5/8




29) Solve: 4 x 4 x 4 = ?

Answers

Answer:

bghjgkk7686968679

hjkggkhk67896869

ghjkgh

Step-by-step explanation:

hjkh7689

Answer:

29, 5/24 ,64

Step-by-step explanation:

27) x-9=20

x=20+9

x=29

28) 1/3*5/8

1*5/3*8

5/24

29) 4*4*4

4*4=16

16*4

64

please awnser photo will give brain if you are first

Answers

Answer:

THE SECOND ONE

The ratio of the length to the width of a picture is 5:2. The picture is enlarged so that its length is 15 inches now. What is the width of the enlarged picture?



A. 5 in.
B. 6 in.
C. 7 in.
D. 8 in.

Answers

The answer is B.
The ratio is multiplied by three so 5 times 3 is 15 and 2 times 3 is 6.

Answer:

b

Step-by-step explanation:

PLs HeLP !!!

multiply
(-8) x 11

Answers

Answer:

-88

Step-by-step explanation:

11*8=88 put the negative sign with it and you get -88

Answer:

the answer is -88

Step-by-step explanation:

Hope this helps you so glad that I could help

A bag contains 5 red marbles, 8 white marbles, and 7 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red?

Answers

Answer: 8/7752

Step-by-step explanation:

Since we are told that the bag contains 5 red marbles, 8 white marbles, and 7 blue marbles. The total number fo marbles would be:

= 5 + 8 + 7

= 20 marbles

If 4 marbles out at random, without replacement, the probability that all the marbles are red would be:

= 5/20 × 4/19 × 3/18 × 2/17

= 1/4 × 4/19 × 1/6 × 2/17

= 8/7752

With explanation please, step by step if is necessary, I need heeelp!

Answers

Answer:

[tex]area \: of \: the \: circle \: = \: \pi {r}^{2} \\ so \\ \: 10 = \pi {r}^{2} \\ {r}^{2} = \frac{10}{\pi} \\ r = \sqrt{ \frac{10}{\pi} } \\ r = \frac{ \sqrt{10} }{ \sqrt{\pi} } \\ r = \frac{ \sqrt{10} \times \sqrt{\pi} }{ \sqrt{\pi} \times \sqrt{\pi} } \\ r = \frac{ \sqrt{10\pi} }{\pi} \\ since \: d \: = 2r \\ so \\ d = 2( \frac{ \sqrt{10\pi} }{\pi} ) \\ \\ d = \frac{2 \sqrt{10\pi} }{\pi} \\ since \: circumferenc \: = 2r\pi \\ so \: circumference = 2( \frac{ \sqrt{10\pi} }{\pi} )\pi \\ = 2( \sqrt{10\pi} ) \\ = 2 \sqrt{10\pi} [/tex]

Find the missing values on the diagram below. Assume that each line is evenly divided. I'm pretty confused on the right side of the number line- anyone understand this??? ​

Answers

Answer:

A = 72 B = 50% C = 40%

Step-by-step explanation:

Each space on the bottom is worth 10%.

Each space on the bottom is worth 36.

The values of the equations are solved and a = 72 , b = 50 % and c = 40 %

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

On the number line , the values above represents the numbers and the values below represents the percentage pf numbers

So , a = 20 % of the total value of the number line

b = ( 50 - 0 ) % = 50 % of the number line

And , c = 40 % of the number line which is 144

So , 40 % of the total value = 144

Substituting the values in the equation , we get

( 40 /100 ) A = 144

Multiply by 100 on both sides , we get

40A = 14400

Divide by 40 on both sides of the equation , we get

A = 360

So , the total value of the number line is 360

where a = 20 % of the number line

On simplifying the equation , we get

a = ( 20/100 ) 360

a = 20 x 3.6

a = 72

Therefore , a = 72 , b = 50 % and c = 40 %

Hence , the equations are solved

To learn more about equations click :

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All of the following monomials are partial factors of the polynomial 12xº y2 – 18x2y + 6x?y? EXCEPT:

Answers

Answer:

80

Step-by-step explanation:


Convert 5 hours to minutes.

Answers

Answer:

300 min

Step-by-step explanation:

60 times 5 :)

In a largo container of balls, there are at least 5 red balls for
overy yollow ball. If there are 47 yellow balls in the container,
which of the following inequalities represents the number of red
balls, r?

Answers

Balls r? What? I don’t understand

Find the solutions to the quadratic. *
y = (x + 13)(x - 21)

Answers

Answer:

[tex]\huge\boxed{-13, 21}[/tex]

Step-by-step explanation:

The most common way to solve for the roots of a polynomial is to use the Quadratic formula, which will return us with two values of x that make the equation equal 0.

...however, this form of the equation is already in root form. If we multiplied these two terms, we'd get [tex]x^2 - 8x -273[/tex], and when we factor that, we'd get -13 and 21.

Roots are usually written in the form [tex](x-a)(x-b)[/tex], where the zeroes will be the value of x that makes each binomial equal 0 - aka, the opposite of a and b.

The opposite of 13 is -13, and the opposite of -21 is 21.

Therefore, the solutions of this equation are -13 and 21.

Hope this helped!

Which of the following lines is perpendicular to y=1/4x-3?

A. y = 4x
B. 4x - y = -2
C. y = -4x + 6
D. 8x - 2y = 3
E. y = 4x + 9

(I think it’s either C, or D, please help I don’t understand)

Answers

Answer:

The answer is

[tex]y = - 4x + 6[/tex]

Step-by-step explanation:

Negative reciprocal for the slope.

The equation of the perpendicular line will be y = -4x + d. Then the correct option is C.

What is the equation of a perpendicular line?

Let the equation of the line be y = mx + c. Then the equation of the perpendicular line that is perpendicular to the line y = mx + c is given as y = -(1/m) + d. If the slope of the line is m, then the slope of the perpendicular line will be negative 1/m.

The equation of the line is given as,

y = (1/4)x - 3

The slope of the line is 1/4. Then the slope of the perpendicular line will be - 4. Then the equation of the line is given as,

y = -4x + d

The equation of the perpendicular line will be y = -4x + d. Then the correct option is C.

More about the equation of a perpendicular line link is given below.

https://brainly.com/question/14200719

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What is JL ? KM=12
JM=16

Answers

Answer:

D. 25

Step-by-step explanation:

By geometric mean property:

[tex] {(12)}^{2} = LM\times JM \\ \\ 144 = LM\times16 \\ \\ LM = \frac{144}{16} \\ \\ LM = 9 \\ \\ [/tex]

JL = JM + LM = 16 + 9 = 25

Carlo sold his house for P8,000,000. The real-estate agent got a 5% commission from the sales.
From his commission, he has to pay BIR tax and other obligations required for the transfer of ownership
of the property to the buyer. This expense represents 6% of his total commission. How much net
amount will he receive?​

Answers

Answer:

The net amount received is 7,120,000

Step-by-step explanation:

The computation of the net amount received is shown below:

= Sale value of the house - real agent commission - expenses

= 8,000,000 - 8,000,000 × 5% - 8,000,000 × 6%

= 8,000,000 - 400,000 - 480,000

= 8,000,000 - 880,000

= 7,120,000

Hence, the net amount received is 7,120,000

The same is relevant

I think its the second one but I'm not sure..

Answers

Yes it’s correct. You just need to plug each of the x and y values to see if they satisfy the equation.

How can you write the equation for a linear function if you know only two ordered pairs for the function? Drag tiles tho complete the explanation. Tiles may be used once, more than once, or not at all.

Answers

Answer:

Explanation below

Step-by-step explanation:

First determine the slope using (y2-y1)/(x2-x1)

Then set up point slope form and add in an ordered pair for x and y to determine the y intercept: y - y1 = m(x - x1). Solve for y and you'll end up with slope intercept form.

For example: (-2,1), (3,2) find slope and y intercept.

(2-1)/(3-(-2))= 1/5

y-2=.2(x-3)

y=.2x-.6+2

y=.2x+1.4 or y=(x/5)+(7/5)

HELP PLS BRAINLIEST AND POINTS!!!!

Answers

Answer:

C

Step-by-step explanation:

Since a triangle's area is half as much as a rectangle or square, considering that they have the same width and length, you can basically eliminate choices a and b.

Choice d doesn't make sense because it's a square, now you are left with choice c.

Answer:

I think it might be d.

Write the slope intercept form of the graph plz

Answers

Answer:

y = 3x - 6

Step-by-step explanation:

slope intercept form is: y = mx + b

m is your slope, so figure it out by doing rise/run

you rise 3, over one which is 3/1, but simplifies to 3

b is your y-intercept, find it by seeing where the line crosses the y-axis, which is -6

therefore, your answer is: y = 3x - 6

Help ill mark u brainliest pls

Answers

Answer:

a = 151

Step-by-step explanation:

Both angles make a supplementary angle meaning their angles will add up to 180°.

a + 29 = 180

a = 151

What is the value of the expression -48 ÷ (-4)

Answers

Answer:

12

Step-by-step explanation:

Since 48/4=12

But this time all negative

negative*negative=positve

SO it is 12 still

Answer:

12

Step-by-step explanation:

negative divided by a negative makes a positive, -48/(-4) is 12

Which steps show how to use the distributive property to evaluate 9.32?

Answers

Answer:

D

Step-by-step explanation:

40.42 divided by 4.3 with steps

Answers

Answer:

9.4 is the answer.

Step-by-step explanation:

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