What is the x coordinate in the solution of the system of equations y =-2/3x and 4x - 9y =-40

Answers

Answer 1

The two given equations are:
y = -2/3 x
4x - 9y = -40

Substitute by the first equation in the second as follows:
4x - 9(-2/3 x) = -40
4x + 6x = -40
10x = -40
x = -4

Answer 2

Final answer:

The x-coordinate in the solution of the given system of equations is -4.

Explanation:

The x-coordinate in the solution of the given system of equations can be found by substituting the value of y from one equation into the other equation and solving for x. Let's solve the system of equations:

Start with the equation y = -2/3x. Substitute this into the second equation:

4x - 9(-2/3x) = -40

Now simplify and solve for x:

4x + 6x = -40

10x = -40

x = -4

So, the x-coordinate in the solution of the system of equations is -4.

Learn more about Solving systems of equations here:

https://brainly.com/question/29050831

#SPJ11

Related Questions

Evaluate BC for A = 5, B = -4, and C = 2.

Answers

8 becuase C(2) x B(4) = 8

Answer: -8

Step-by-step explanation: Substitute the value of the variable into the expression and then simplify you should get the answer -8

BC= (-4)(2)=-8

I’m stuck. Please help.

Answers

So, we want to first make this into equation form.

Say n = the number.

4 less:

-4

Than half a number

1/2n - 4

Is equal to 37 less

1/2n - 4 = -37

Than twice the number

1/2n - 4 = 2n - 37

So, move all like terms to the same side:

1/2n - 2n = -37 + 4

-1 1/2n = -34

/-1 1/2 /- 1 1/2

n = 22 2/3

To maximize learning, a ________ should be presented on a(n) ________ schedule.

Answers

To maximize learning, a CS + UCS should be presented on a(n) continuous schedule.

In here, CS means conditional stimulus while UCS is the unconditioned stimulus. Taking for example, let us imagine that the smell of food is the unconditioned stimulus, the feeling of hunger in response to that specific smell is a unconditioned response, and then the sound of the whistle is the conditioned stimulus.

He measure of an angle is 78° less than the measure of its complement. what is the measure of the angle?

Answers

When we say two angles are complementary, we mean that they add up to a right angle – 90 degrees. Now, we haven’t been given either of the angles directly, but we’ve been given their relationship, and we’ve been given the fact that they’re complementary. If we call the angle’s complement θ, we can express the fact that our angle is 78 degrees less than that with the expression (θ-78). Putting our information together, we have:

θ+(θ-78)=90
2θ-78=90

From there, it’s fairly straightforward algebra; just solve for θ. Remember though, the answer they’re looking for is the (θ-78) term, so make sure to evaluate that once you’ve found θ.

Solve for 8x please

Answers

The answer is A..... hope this helps :D

8x=-c+k
x=-c+k/8
The first option is the answer

How many seconds are there in (a) one hour and thirty-five minutes and (b) one day?

Answers

There are 5700 seconds in an hour.

What numbers have the absolute value of 1/2

Answers

1/2 and -1/2

hope it helps, brianliest pls

At 12:00 noon two mississippi steamboats are 126 miles apart. at 6:00 p.m. they pass each other going in opposite directions. if one steamboat travels 9 miles per hour faster than the other, find the speed of both boats.

Answers

Let us solve the problem using an equation. Let x be the speed of one of the boats. The speed of the other boat will be x + 9. Both the boats have traveled for 6 hours, starting from 12:00 noon to 6:pm The distance they have traveled within 6 hours is 126 miles. The distance traveled by the first boat is x*6 = 6x Miles The distance traveled by the other boat is (x + 9) 6 = 6x + 54 Miles Thus, 6x + 6x + 54 = 126 Miles 12x = 126 - 54 12x = 72 x = 72/12 x = 6 So the speed of one of the boats is 6 miles per hour and the speed of the other boats is 6 + 9 = 15 miles per hour.

The answer will be

The rate of the first steamboat is 6 mph, the rate of the second steamboat is

15 mph .

Find the percent change from 48 to 228. Tell whether it is a percent increase or decrease. If necessary, round your answer to the nearest percent.

Answers

228 - 48 = 180

180/48 = 3.75

Its increase 375%

Which algebraic expression has a term with a coefficient of 3?

Answers

Greetings!

A coefficient is a constant value, multiplying the variable in an expression/equation.

Examples:
[tex]4x^2+3y^3[/tex]

The coefficient of the second term would be three.

Hope this helps.
-Benjamin

the correct answer is option (b) 3x² - 7.

The coefficient is the numerical factor in front of the variable. Let's calculate the coefficient for each option:

a) The coefficient of x in 2x is 2, not 3.

b) The coefficient of x² in 3x² is 3, which matches our requirement.

c) The coefficient of x in 4x is 4, not 3.

d) There is no x term in x³ + 2, so the coefficient for x is 0.

Therefore, the correct answer is option (b) 3x² - 7.

In option (b), the term with the coefficient of 3 is 3x². The coefficient of this term is indeed 3 because it's the number multiplied by x squared. The other terms in the expression do not have a coefficient of 3.

In options (a) and (c), the coefficients for the x terms are 2 and 4, respectively, which do not match the requirement.

Option (d) doesn't have an x term; it only has x raised to the power of 3 (x³), and the coefficient for this term is 0.

So, by process of elimination and calculation, we determine that option (b) is the correct answer with the term 3x² having a coefficient of 3.

complete question

Which algebraic expression has a term with a coefficient of 3?

a) 2x + 5

b) 3x² - 7

c) 4x - 3

d) x³ + 2

what is the solution to 7ln(x+2.8)=11.2

Answers

Attached solution with steps.

Which of the following is equivalent to [tex]( \frac{1}{2} ) ^{-2t} [/tex]
[tex](( \frac{1}{2}) ^{2} ))\ x^{t} [/tex]
[tex] \frac{1 ^{t} }{2 ^{2} } [/tex]
[tex](2 ^{2} ) ^{t} [/tex]
[tex]2 ^{2} * 2^{t} [/tex]

Answers

[tex]\bf \left( \cfrac{1}{2} \right)^{-2t}\implies \left( \cfrac{2}{1} \right)^{2t}\implies (2)^{2t}\implies 2^{2\cdot t}\implies (2^2)^t[/tex]

The perimeter of the triangle shown to the right is 115 feet . Find the length of each side

Answers

Final answer:

To find the length of each side of the triangle, we need to determine the length of the third side. The perimeter of the triangle is given as 115 feet. We know that the first side is 80 feet long and the second side is 105 feet long. To find the length of the third side, we subtract the sum of the lengths of the first two sides from the perimeter: 115 - 80 - 105 = 115 - 185 = -70.

Explanation:

However, since the length of a side cannot be negative, it means that there has been an error in the measurements or calculations. Please double-check the given information and calculations to ensure the accuracy of the question.

The area of a square bedroom is 144 square feet. what is the length of one wall?

Answers

The answer is: "12 feet" .
________________________________
Note: In a square, the length of EACH of the four sides of the square is the same.

Area = Length * width.

For a square, length = width.

So for a square, Area = length * width = (length of a side)² = s² ,

Given: A = s² = 144 ft² ;

Solve for the positive value of "s" .
________________________________
  → s² = 144 ft² ; Take the "square root" of each side ;

  → √(s²) = √(144 ft²) ;

  → s = 12 ft.
_______________________________
The answer is: 12 ft.
_______________________________

The length of one wall of the bedroom is 12 feet, which is the square root of the room's area of 144 square feet

The area of a square is calculated by squaring the length of one of its sides, so if the area of a square bedroom is 144 square feet, the length of one side can be found by taking the square root of the area. Therefore, to find the length of one wall, calculate the square root of 144, which is 12 feet. So, the length of one wall of the bedroom is 12 feet

what two integers does Square Root 140 fall between?

Answers

Answer: "11 and 12" .
_______________________________
11² = 121 ;
12² = 144;

140 falls between 121 and 144 .
_______________________________

Answer: "11 and 12"
hope this helps:D

Find the length of the arc subtended by a central angle of 30degrees on a circle of radius 2 feet

Answers

1847483993722748494736384 is your answer lolz

Ashley is making cookies. the recipe calls for 3/4 of a cup of sugar. she needs to make five batches of cookies. how many cups of sugar does ashley need?

Answers

Ashley needs 3 3/4 cups of sugar.
Hope this helps!!

A tortoise walk 52.0 feet per hour. Convert this into inches per minute

Answers

1 foot = 12 inches

52 * 12 = 624 inches per hour

1 hour = 60 minutes

624/60 = 10.4 inches per minute

if a project will take 35 employees 2,940 hours to complete, how many hours will each employee have to work?

Answers

The answer is 84 hours for each employee. You divide the number of hours by the number of total employees.

Which value can fill in the blank in the function f(x)=|x| to make it's graph wider than that of the parent function, f(x)=|x|

Answers

Multiply x by any number between 0 and 1
For example f(x) = |0.5x|

To widen [tex]$ |x| $[/tex]'s graph, use [tex]$ f(x) = |ax| $[/tex] where [tex]$ a > 1 $,[/tex] stretching horizontally by multiplying [tex]$ x $ by $ a $.[/tex]

To make the graph of the function [tex]$ f(x) = |x| $[/tex] wider than that of the parent function [tex]$ f(x) = |x| $[/tex], we need to stretch the graph horizontally.

In the absolute value function [tex]$ f(x) = |x| $[/tex], the "wideness" of the graph is determined by the coefficient of [tex]$ x $[/tex], which affects the slope of the graph. When the coefficient of [tex]$ x $[/tex] is greater than 1, the graph becomes wider, and when it's less than 1, the graph becomes narrower.

So, to make the graph wider, we can introduce a coefficient [tex]$ a $[/tex] to the [tex]$ x $[/tex]term inside the absolute value function. The function becomes [tex]$ f(x) = |ax| $, where $ a $[/tex] is a positive constant greater than 1.

For example, if [tex]$ a = 2 $[/tex], the function becomes [tex]$ f(x) = |2x| $[/tex]. This means every $ x $ value in the function is multiplied by 2 before taking the absolute value. As a result, the graph stretches horizontally, making it wider than the parent function.

In conclusion, to make the graph wider than the parent function [tex]$ f(x) = |x| $[/tex], we can use the function [tex]$ f(x) = |ax| $[/tex], where [tex]$ a $[/tex] is a positive constant greater than 1.

Interpret the graph to determine the statement the manager at a building supply store can use to help a customer determine how much primer to purchase.
Each gallon of primer will cover a (minimum) (maximum) (multiple) of (200) (400)(600) square feet

Answers

Answer:

Each gallon of primer will cover a maximum of 200 square feet

Step-by-step explanation:

The x-axis of the graph is the area to paint in square feet. The y-axis of the graph is the number of gallons of primer needed.

We can see that 1 gallon of primer covers from 0 to 200 feet; 2 gallons of primer covers from 200 to 400 feet; etc.

This tells us that each gallon of primer covers a maximum of 200 square feet.

You have exactly 10 minutes to get to class for

your big test on lateral numbers! Your friend Gus

(who’s weirdly in to this sort of thing) says that class

is exactly 10,000 feet away. Let’s say you travel to

class at a rate of r feet/minute. You would like to get

there a few minutes early. More specifically, let’s say

you will arrive t minutes early.

a) Write an equation that relates r and t.

Answers

Rate = distance/Time

Rate = 10000 ft/ 10 min

R = 10000/10

R = 1000

You will have to travel 1000 feet per minute nonstop, or 0.189 miles per minute

hope this helps

PLEASE HELP ASAP!! Will give brainliest!

1)100,1000,10,000, or 100,000

2)Greater or less

Answers

Hi there! 9.125 * 10^-3 is definitely less than 9.125 * 10^2, because when it comes to negative powers of 10, the numbers are decimals. 10^-3 equals 0.001 or one thousandths in word form. 10^2 is 100. When solving for the answers. 0.009125 is less than 912.5. When 912.5 is divided by 0.009125 912.5 is 100^5 or 100,000 times greater than 0.009125. The answer is that 9.125 * 10^-3 is 100,000 (100^5) times less than 9.125 * 10^2.

the awnser to this question is less than

What is the value of x? The triangle is similar.

Answers

The ratios between the sides of any two similar triangles are equivalent. You can use that fact to set up an equality between the ratios of the sides on triangle UKL and triangle UWV:

20/12 = 30/(7x - 3)

From there, simply solve for x.

I need help from a math genius

Answers

The answer to the first one is (B. 24)

The answer to the second is (B. 14)

1. 24=38+(8/8)
2. 14=6+8
3. 5=2+3
4. 10=2X5

Carl is boarding a plane. He has 2 checked bags of equal weight and a backpack that weighs 4 kg. The total weight of Carl's baggage is 35 kg. Write an equation to determine the weight, (w), of each of Carl's checked bags.

Answers

(35 - 4) / 2 = w
35 is total weight
4 is backpack
2 is the number of bags

Answer:

15.5

Step-by-step explanation:

2w+ 4 = 35 is the equation

15.5 is the total for w

I did this khan and this answer is correct

Hope this helps!

Find the equation of the circle with center at the origin that contains the point ( 12 , 9 ) (12,9).

Answers

Radius is the length of line from centre to (12,9)
Equation of circle: (x-12)+(y-9)=r^2
r=√12^2+9^2=√169
r^2=(√169)^2=169
hence, (x-12)+(y-9)=169

How is the graph of y=9(3)^x+6 translated from the graph of y=9(3)^x?

Answers

it is translated down 6.

The ______ is the total area drained by a river and its tributaries.

Answers

The drainage basin is the total area drained by a river and its tributaries

What is the output of the function f(x) = x + 21 if the input is 4? When the input is 4, the output of f(x) = x + 21 is

Answers

To find the output when you know the input, just plug the input into the function.

x+21=4+21=25

The output is 25.

Hope this helps!

The answer is

hope that helps

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