Mathematics High School

Elimination equations
9x - 4y = 19
4x+4y=20

Answers

Answer 1
13x = 39
X = 3
Sub back in,
12 + 4y = 20
Y = 2
Hope this helps and please mark me as brainliest, I’m trying to level up
Answer 2

The solution to the system of equations 9x - 4y = 19 and 4x + 4y = 20

is x = 3 and y = 2.

What are linear and non-linear functions?

A straight line on the coordinate plane is represented by a linear function. As an illustration, the equation y = 3x - 2 depicts a linear function because it is a straight line in the coordinate plane.

Any function whose graph is not a straight line is said to be nonlinear.

Any curve other than a straight line can be a graph of it.

An example of a non-linear function is a quadratic function.

Given, Two linear equations in two variables 'x' and 'y',

9x - 4y = 19 and 4x + 4y = 20.

Now, Adding these two equations we have,

13x = 39.

x = 3 and hence y = 2.

learn more about linear equations here :

https://brainly.com/question/11897796

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Related Questions

Find the zeros of the function

Enter the solutions from least to greatest.
g(x) = (x-2)(3x + 3)

lesser x =
greater x =

Answers

Answer:

lesser: -1

Greater: 2

Step-by-step explanation:

We need to figure out what values of x make it equal to 0

because it's all being mulitplied we just need one parathenses to equal 0

so we can set them equal to 0

which means we have

x-2=0

3x+3=0

Solve for x and get

2

-1

How do I figure this out?

Answers

it is 1 2 twelve I can end without 20 word my friend so deal with it


Please help due tonight

Tom buys 3 burgers and 5 drinks for $34. Jane buys 2 burgers and 6 drinks for $36. How much is each burger and each drink?

Answers

Using algebra
3b+5d=34
2b+6d=36
This is a simultaneous equation
Times top equation by two and bottom by 3
6b+10d=68
6b+18d=108
Subtract bottom equation by top one
-8d=-40
d=5
substitute this into an equation
3b+25=34
-25 from both sides
3b=9
b=3
drink is $5 burger is $3

Find the Area of the Figure. Do not type in the units.

Answers

We need the figure to solve it

what is 16y - u + 34x when x = 2 u = 14 and y = 3​

Answers

Answer:

102

Step-by-step explanation:

48-14+68

.Mariam went to the store to buy some apples. The price per pound of the apples is $6 per pound and she has a coupon for $2.25 off the final amount. With the coupon, how much would Mariam have to pay to buy 3 pounds of apples? Also, write an expression for the cost to buy p pounds of apples, assuming at least one pound is purchased.

Answers

Answer:

$15.75

$6p-$2.25

A person invested $7,900 in an account growing at a rate allowing the money to
double every 8 years. How much money would be in the account after 5 years, to the
nearest dollar?
I need answers fast

Answers

$12,838

7900/8= 987.5
For every one year, you invest $987.5
987.5 times 5 for 5 years= 4,937.5
If you round to the nearest dollar, it would be: $4,938
The total amount of money that would be in the account is, $12,838.

what is the answer to 5x+2<17

Answers

x < 3

hope it helps :)

Answer x < 3
Explanation subtract 2 from both sides divide 15 by 5 and that gets u 3

Sally is 4 years older than Brody. Evelyn is 3 times older than Brody. If Brody's age is represented by x, create an expression that represents the total age of all three people.
A.4x+4
B. 5x
C.5x+4
D.7x

Answers

Answer:

Its C. 5x +4

Step-by-step explanation:

The expression that represents the total age of all three people is f(x) = 5x + 4.

What is a mathematical function, equation and expression?function : In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.expression : A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.equation : A mathematical equation is used to equate two expressions.

Given is that Sally who is 4 years older than Brody. Evelyn is 3 times older than Brody.

Assume that Brody's age is represented by [x]. Then, the age of Evelyn will be (3x) and the age of Sally would be (x + 4). The expression that represents the total age of all three people is -

f(x) = x + (x + 4) + 3x = 5x + 4

f(x) = 5x + 4

Therefore, the expression that represents the total age of all three people is f(x) = 5x + 4.

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Let () = 4(3)x. Complete the table shown below.

Answers

R we supposed to answer that for u?

Which one is correct A. B. C. D.

Answers

I think the correct answer is D

four parcels had a weight of 400g. when a fifth parcel was added the mean became 500g. what was the weight of the fifth parcel?

Answers

Answer:

900 g

Step-by-step explanation:

Here, we want to get the weight of the 5th parcel

Mathematically, the total

is the mean multiplied by the count

the four parcel weighted 400 g averagely

The mean of this is 400(4) = 1,600 g

Adding the 5th parcel, we have an average of 500 g

This means that the total will be;

500(5) = 2,500 g

the difference in weight is the weight of the 5th parcel

That’s 2500-1600 = 900 g

iTS LEGIT EASY POINTS XD

Answers

Answer:

thanks boyz

Step-by-step explanation:

Answer:

7x+78

Step-by-step explanation:

i just know

What is the slope of the line that passes through the points (-5, -7) and (4,−1)? in the simplest form

Answers

Answer:

2/3

Step-by-step explanation:

Use rise over run, (y2 - y1) / (x2 - x1)

Plug in the points, then simplify:

(y2 - y1) / (x2 - x1)

(-1 + 7) / (4 + 5)

6/9

= 2/3

So, the slope of the line is 2/3

find the missing side length of similar polygons

Answers

Answer:

23

Step-by-step explanation:

54,675+33,548,000x+a=?

Answers

Answer:

33602675

Step-by-step explanation:

Line segmentsAB and XY are translated 2 units left and 3 units down to form line segments A'B' and X'Y'. Enter the distance, in units, between line segmentsA'B' and X'Y'.

Answers

Answer:

The answer is below

Step-by-step explanation:

The question is not complete, but I would show you how to answer it.

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, translation, reflection and dilation.

Translation is the movement of a point up, down, left or right. Translation is a rigid transformation, that is it preserves the shape and size of the figure. Types of rigid transformation are rotation, reflection, and  translation.

If the distance between Line segment AB and line segment XY is 2 units and then both line segments are  translated 2 units left and 3 units down to form line segments A'B' and X'Y'. The distance between the newly formed line segments A'B' and X'Y' would still be 2 units.

9x-27 whats the answer

Answers

Answer:

The answer is 9(x-3).

Step-by-step explanation:

Answer:

-243

Step-by-step explanation:

help please i need you

Answers

Answer:-10hy-4h

Step-by-step explanation:

h*-10y and h*-4

LOTS OF POINTS WILL GIVE BRAINLIEST

B and D are points on a circle, centre C.
AB is the tangent to the circle at B.
ADC is a straight line.
AB=3 cm.
AD= 2 cm.
The radius of the circle is 7 cm.
Find the value of y.


Answers

It should be 6 because of the 7.

What's the solution for the system graphed below?

Answers

Answer:

Step-by-step explanation:

the intersecting pair is (-2, -3)

Riley has 3 hours to play outside to play before diner. She spends 3/5 of that time playing outside how long does riley play outside

Answers

riley is gone to work 3/5 so step by step quicker

Answer:1.8 hours

Step-by-step explanation:

just devide and stuff

Kyle ran the race in three and one hundred three thousandths seconds. Which number shows three and one hundred three thousandths in standard form.

Answers

Answer:

Ran =3,103

Seconds = 1330

Step-by-step explanation:

I got this answer hope its right hope this helps: )

Terry rides his bike to work. It
takes him 40 minutes to go 7
miles. What is Terry's rate per
hour?(** how many minutes in
an hour**)

Answers

Answer:

10.5 is the answer

Step-by-step explanation

[tex]\frac{40}{7}[/tex]=[tex]\frac{60}{?}[/tex]

40x1.5=60

7x1.5=10.5

Answer:

10.5

Step-by-step explanation:

How many units long is CD? How do you know?

Answers

Answer:

4

Step-by-step explanation:

because i know

Hurry!
which is the remainder when (x^5-2x^4+3x^3-2x^2+4x-6) is divided by (x+2)

Answers

6 is the correct answer

ABCD contains the points: B(2,3) C(2,1) D(5,1). If the triangle is reflected across the x-axis, what
will B be?

Answers

Answer:

(2, -3)

Step-by-step explanation:

Here is my proof

If you reflect point B across the x-axis, the y-coordinate would change from 3 to be a -3....so B will now be at (2, -3)

Meaghan and Lily are dividing 43.61 by 7. Meaghan says that the first digit of the quotient is in the ones place. Lily says it is in the tens place. Who is​ right? How do you​ know?

Answers

Answer: Meaghan is right.

Step-by-step explanation:

For a number like:

123.45

the tens place would be the "2" (second number at the left of the decimal point)

The ones place would be the "3" (first number at the left of the decimal point)

Let's suppose that Lily is correct.

Then the quotient of:

43.61/7

Will be a number with two digits in the left of the decimal point.

The smallest number that meets this condition, is the number 10.

Then let's see:

7*10 = 70

then:

70/7 = 10

and:

43.61 < 70

(70 is larger than 43.61)

then:

43.61/7 < 70/7 = 10

Then:

(43.61/7) < 10

This means that our quotient is smaller than 10, then the first digit of the quotient can not be on the tens place.

Then Meaghan is the correct one.

We also could perform the quotient to find:

43.61/7 = 6.23

So yes, Meaghan is correct.

Work out 4 1/7 + 1 1/2

Answers

Answer:

5 9/14

Step-by-step explanation:

Answer:

5 9/14

Step-by-step explanation:

(4+1) + ( 1/7 + 1/2)

\     /

  5        9/14

= 5 9/14

I hope this helps.

6x+9=-12
Can someone help me with this question

Answers

Answer:

-7/2

Step-by-step explanation:

Answer:  

-7/2

Step-by-step explanation:

Hope it helps

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