X + y - 4 = 0 x - y = 0 The solution lies in quadrant _____. I II III IV

Answers

Answer 1

Answer:

Answer:

Quadrant I

Step-by-step explanation:

To find a quadrant, take the 2 equations and add them together for both x and y. The resulting point's quadrant is the solution.

X part

2x-4=0

add 4 to each side

2x=4

divide by 2

x=2

Y part

2-y=0

add 2

y=2

(2,2)

point (2,2) lies in quadrant 1

PLEASE MARK BRAINLIEST

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EASY MATH QUESTION PLEASE HELP:
3 times the sum of the first and the third integer is equal to 30 more than 4 times the second integer
Can someone show me the steps to this equation. z- 4(2/3) = 2(2/3) it read Z minus four and 2/3 equals two and two thirds just to clear confusion that the 2 and 4 are not being multiplied by 2/3

In a lottery the first prize is $1,000,000. Each succeeding prize is 1/2 of the preceding prize. How much money is allotted in 7 prizes?

Answers

Second: $500,000
Third: $250,000
Fourth: $125,000
Fifth: $62,500
Sixth:$31,250
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If you need the total just add

The Ross family and the Russell family each used their sprinklers last summer. The water output rate for the Ross family's sprinkler was 35L per hour. The water output rate for the Russell family's sprinkler was 30L per hour. The families used their sprinklers for a combined total of 55 hours, resulting in a total water output of 1725L. How long was each sprinkler used?

Answers

Answer:

Ross = 15 hours

Russel = 40 hours

Step-by-step explanation:

Let Ross have used their sprinklers for x hours

Let Russell have used their sprinklers for y hours

Together they used 55 hours

x+y = 55 hours

The output of Ross is 35 liters per hour and Russell is 30 liters per hour for a total of 1725

35x + 30y = 1725

Multiply the first equation by -30

-30(x+y=55)

-30x -30y = -1650

Add this to the second equation to eliminate y

-30x -30y = -1650

35x + 30y = 1725

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

5x =75

Divide each side by 5

x = 15

Now find y

x+y = 55

y = 55-15

y = 40

Reed uses 8 pieces of glass per square foot to make a stained glass window. How many pieces of glass will he need to make a window that is 864 Square inches?

Answers

Reed uses 88 pieces of glass per square foot to make a stained glass window. How many pieces of glass will he need to make a window that is 864864 square ...

Answer: The answer is 48

Step-by-step explanation:

I actually don’t know why?

How much does 3000 kg = to get tons

Answers

1 ton= 1000 kg
3000 kg= 3 ton

again
1000kg = 1ton
3000kg = 3 tons

Solve the following equation for x, in terms of an and b. Enter the numerator of the fraction in blank 1 and the denominator in blank 2 and 3. X=_/_- , _

Answers

Answer:

I can help you solve the equation for x, in terms of a and b. Here are the steps and the results:

To solve the equation for x, we need to isolate x on one side of the equation and simplify the expression on the other side, we can write:

x + a = b x = b - a

Therefore, the solution for x is x = b - a. This is a fraction with numerator b - a and denominator 1. To enter the answer in the blanks, we can write:

x = b - a / 1 - , _

I hope this helps you understand how to solve equations for x. If you have any questions, please let me know.

How would i solve 4x-3y=8
5x-2y=-11

using the elimination method?
i'm in algebra 1 and we had a sub the day we were doing this and he was terrible explaining the situations on the worksheet. please explain

Answers

To use the elimination method, the coefficient of one variable in one equation must be the opposite number of the coefficient of the same variable in the second equation.

$4x-3y=8 \n5x-2y=-11$

Here you can multiply the first equation by 2, and the second equation by -3.

$4x-3y=8 \ \ |\cdot 2 \n5x-2y=-11 \ \ |\cdot (-3) \n \n8x-6y=16 \n-15x+6y=33$

Now you just add the equations by sides and solve for one variable.

$8x-6y=16 \n \underline{-15x+6y=33 } \n8x-6y-15x+6y=16+33 \n8x-15x=16+33 \n-7x=49 \nx=-7$

Now you solve for the other variable by substituting -7 for x in one of the equations.

$4x-3y=8 \n4 \cdot (-7)-3y=8 \n-28-3y=8 \n-3y=8+28 \n-3y=36 \ny=-12$

You could choose x at the beginning as well. Then you'd have:
$4x-3y=8 \ \ |\cdot (-5)\n5x-2y=-11 \ \ |\cdot 4 \n \n-20x+15y=-40 \n\underline{20x-8y=-44 \ \ \ \ \ \ } \n-20x+15y+20x-8y=-40-44 \n15y-8y=-40-44 \n7y=-84 \ny=-12 \n \n4x-3y=8 \n4x-3 \cdot (-12)=8 \n4x+36=8 \n4x=8-36 \n4x=-28 \nx=-7$

So the answer is:
$x=-7 \n y=-12$

Answer:

x=-7 and y=-12

Step-by-step explanation:

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1/10 of 7001/5 of 700

Geometry help help help.

Find the student’s error in solving the following inequality.31 < –5x + 6 25 < –5x –5 < x a. The student should have added 6 to both sides instead of subtracting it. b. The student divided 25/–5 incorrectly. c. The student should have switched the direction of the inequality sign to get –5> x for a final answer.