solve the following equations.x + 3y =0 and 5x + y = 15

Answers

Answer 1

Answer:

The required values are:-

x= 45/14 and y= -15/14


Related Questions

You make a photo prop for a school fair. You cut a 10-inch square out of a parallelogram-shaped piece of wood. What is the area of the photo prop?

Answers

The area of the photograph when cropped by 10 square inches is,

31.99 ft².

Use the concept of quadrilateral defined as:

A quadrilateral is a shape with four sides, four vertices, and four angles that is only two-dimensional. Convex and concave are the two main forms. Convex quadrilaterals can also be divided into a number of subgroups, including trapezoids, parallelograms, rectangles, rhombus, and squares.

Given that,

The height of the photo is = 8 ft

The width of the photo is = 4 ft

The cropped area  = 10 square inches,

Since we know that,

1 square inch  = 0.007 square foot

Therefore,

10 square inches = 0.007 x 10 square foot

10 square inches = 0.07 square foot

The area of the photograph = 8x4

The area of the photograph = 32 square ft

Now the area of the photo after cropping:

32 - 0.07  = 31.99 square ft

Hence,

The required area of the photograph is 31.99 ft².

To learn more about quadrilaterals visit:

https://brainly.com/question/11037270

#SPJ4

The complete question is:

You make a photo prop for a school fair. You cut a 10-inch square out of a parallelogram-shaped piece of wood. What is the area of the photo prop?

Round to the nearest tenth!

Answers

9514 1404 393

Answer:

  9.6 square feet

Step-by-step explanation:

Maybe you want the quantity of glass in square feet. That will be found using the area formula ...

  A = (π/4)d²

  A = (3.14/4)(3.5²) = 9.61625 . . . . square feet

About 9.6 square feet of glass are needed to create the window.

63 is 75% of what number? Enter your answer in the box. ​

Answers

Answer:

n = 84

Step-by-step explanation:

63 = n x 3/4

n = 63 / (3/4)

n = 63 / 3 x 4

n = 21 x 4

n = 84

Hope that helps!

Need help on this one

Answers

Answer:

hi I'm pretty sure its C) 2x + 48 = 180

sorry if I'm wrong

whats the equation to (4,5) , Slope = 5/2

Answers

y= 5/2x - 5 hope this helps :)

Answer:

y= 5/2x - 5

Step-by-step explanation:

First, use the equation y=mx+b

m = the slope (5/2)

x = the x coordinate: 4

y = the y coordinate: 5

Then plug in for the values and solve for the only unknown, b.

Therefore we have:

5 = (5/2)4 + b

5 = 10 + b

5 - 10 = b

b = -5

Revert to original equation:

y = 5/2x - 5

help pls. Only answer if correct and will mark brainliest

Answers

Answer:

180 mm^2

Step-by-step explanation:

For the rectangle, you just multiply the sides together. 15x9 equals to 135. The triangle, is a little harder. For the width, you know that the width of the whole shape is 15mm. And one half of it is 9. So the other half must be 6mm. Now you have the width (6) and the length (15) of the triangle. You find the area of it which is 45mm squared. You add up both numbers to get 180.

Please help me answer these ASAP ‼️ will mark Brainliest ‼️ EXTRA POINTS‼️

The GCF of 24 and 36 is?

The GCF of 11 and 84 is?

The GCF of -64x and 56x is?

Please give me the answer for the each question :)

Answers

Answer: The GCF of 24 and 36 is 6. The GCF of 11 and 84 is 1. The GCF of -64x and 56x is -8x. Hope this helps :)

Step-by-step explanation:

four times a certain number is equal is equal to the number subtracted from 40. find the number​

Answers

Answer:

8

Step-by-step explanation:

I am not sure if that is correct but....

40/5=8

Step-by-step proving:

8*4=32

40-32=8

*I was proving my answer not explaining that much and the title is cringy*

what is the slope of the line for (3, 9), (-2, 8)

Answers

Answer:

m = 1/5

Step-by-step explanation:

rise = 1

run = 5

m = rise/sun = 1/5

Need help ASAP please

Select the correct answer.

Which statement describes the end behavior of the exponential function f(x) = 2x - 3?

A.) For very high x-values, f(x) moves toward positive infinity.

B.) For very high x-values, f(x) moves toward negative infinity.

C.) For very high x-values, f(x) moves toward the horizontal asymptote.

D.) For very low xvalues of x, f(x) moves toward negative infinity.

Answers

Answer:

So, the correct answer is that as x gets bigger, f(x) moves towards positive infinity.

help me please please!!!!!!!!

Answers

Answer:

Im not sure but i believe it is A. 5

Step-by-step explanation:

Hope this helps please mark brainlist if im right.

Answer:

B) A = 25π

Step-by-step explanation:

The area of a circle is calculated with the formula [tex]\pi * r^2[/tex]

The radius is half of the diameter, which in this case is 10.

Plugging it in, you get [tex]5^2\pi[/tex]

[tex]5^2 = 25\\[/tex]

[tex]A = 25\pi[/tex]

sorry if the picture is bad but pls help?!??!

Answers

NOT MAKING THE GRAPH BUT:

ADULT

If 145 = 100%, the ratio is 1% : 1.45.  

57/1.45 = 39.3103448%

88 / 1.45 = 60.6896552%

CHILD

108:100 = 1.08 : 1%

77 / 1.08 = 71.2962963%

31 / 1.08 = 28.7037037%

Provide an appropiate response.
At the two points where the curve x² + 2xy + y² = 9 crosses the x-axis, the tangents to the curve are parallel. What is the common slope of these tangents?

Answers

Answer:

-1

Step-by-step explanation:

We can find the tangents to the curve at x = 0, where the roots of the function occur (function crosses the x-axis). We can differentiate the function with respect to x by using implicit differentiation.

[tex]\displaystyle \frac{d}{dx} \Big [ x^2 + 2xy + y^2 = 9 \Big ][/tex]

We will need to use the Power Rule and Product Rule to differentiate this function.

[tex]\displaystyle 2x + 2 \Big ( x \cdot \frac{dy}{dx} + y \cdot 1 \Big ) + 2y \cdot \frac{dy}{dx} = 0[/tex]

Distribute 2 inside the parentheses.

[tex]\displaystyle 2x + 2x \frac{dy}{dx} + 2y + 2y \frac{dy}{dx} = 0[/tex]

Move all terms containing dy/dx to the left side of the equation, and all other terms to the right side of the equation.

[tex]\displaystyle 2x \frac{dy}{dx} + 2y \frac{dy}{dx} = -2x-2y[/tex]

Factor dy/dx from the left side of the equation.

[tex]\displaystyle \frac{dy}{dx} \Big (2x + 2y \Big ) = -2x-2y[/tex]

Divide both sides of the equation by 2x + 2y.

[tex]\displaystyle \frac{dy}{dx} = \frac{-2x-2y}{2x+2y}[/tex]

Factor the negative sign out of the numerator.

[tex]\displaystyle \frac{dy}{dx} = -\frac{2x+2y}{2x+2y}[/tex]

Cancel out the numerator and the denominator.

[tex]\displaystyle \frac{dy}{dx} = -1[/tex]

The derivative of the function is -1 at all points, meaning that everywhere the function has a slope, or tangent, of -1.

The common slope of the tangents as the curve x² + 2xy + y² = 9 crosses the x-axis is -1.

30 points AND BRAINLIEST please help!

(3, 5) is a solution to the equation: y=x+2
This means when x=3 will y=5
True
False

(1, -2) is a solution to the equation: y=-3x+1
True
False

What is the value of y = 4x - 5 when x=2?
? is the value of y when x=2
answer for ?
Blank 1:

In the equation y = 4x -1, if x= 4 what is the y value?
a
4
b
5
c
7
d
9
e
None of the above

In the equation y = 4x -1
answer for ?
When x= 10 ? is the y value?
Blank 1:

Answers

Answer:

True,True,3=8-5 (y=3),E,39

Step-by-step explanation:

Express 0.00386×10-4 in standard form?(Urgent....Answer if sure)

Answers

Answer:

0.000000386

Step-by-step explanation:

What is the value of the digit 6 in this number? Write your answer in number form.

647,013,020

Answers

Answer:

6= six hundred million.

Stella invested $6,100 in an account paying an interest rate of 6 1/2%compounded
monthly. Katherine invested $6,100 in an account paying an interest rate of 6 5/8%
compounded quarterly. After 7 years, how much more money would Katherine have
in her account than Stella, to the nearest dollar?

Answers

Answer:

9662.3822

Step-by-step explanation:

Is there a math Theorem for a right triangle

Answers

Answer:

the pythagoren therom

Step-by-step explanation:

[tex]a{2} + b^{2} = c^{2}[/tex]

CAN AN EXPERT< ACE< MODERATOR OR GENIUS HELPP ME WITT THIS PLSSSSSSSSSSSSSS!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I think degree means the highest exponent, so wouldnt it be 8?

[tex]\huge\text{Hey there!}[/tex]

[tex]\text{What is the DEGREE of the POLYNOMIAL }\mathsf{f(x) = 3x ^8 + 5x + 12}\text{ ?}[/tex]

[tex]\text{We know that degree of polynomials aid the highest number that is in }}\\\text{exponents aka (also known as) the LARGEST EXPONENT}[/tex]

[tex]\text{We only have \bold{8} as your exponent so we can say it is your answer}[/tex]

[tex]\boxed{\boxed{\large\text{Answer: \bf Option B. 8 }}}\huge\checkmark[/tex]

[tex]\large\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

If $5000 is deposited at the beginning of every six months into an account that earns 8% compounded semiannually find the amount after 10 years

Answers

Answer:

Step-by-step explanation:

This is a geometric sum

s=a(r^n-1)/(r-1), here a=5000, n=20, r=1.04

s=5000(1.04^20-1)/(0.04)

s=$148890.39

need the answer of the b
brainliest for the best answer​

Answers

answer

7.24

explanation

40% of 6000 = 2400

6000-2400=3600

labour's cost = 2400

material cost = 3600

15% of 2400 = 360

2400 + 360 = 2760

20% of 3600 = 720

3600 - 720 = 2880

2760 + 2880 = 5560

6000 : 5560 = 92.76

gap = 100.00 - 92.76

= 7.24

A map is drawn with a scale of 1 inch = 15 miles. Nicole measured the distance to the next town as 3 inches. How many miles does she have to travel to get to the next town?

Answers

Answer: 45 miles

Step-by-step explanation:

1 inch = 15 miles. Because there are 3 inches we will need to multiply by 3. 3 x 15= 45

There are 225 wolves in the state park. The population is increasing at a rate of 15% per year. Make a prediction for how long it will take the population to reach 500.

Answers

Answer:

Step-by-step explanation:

F=I(1+r)^t

500=225(1.15^t)

t=ln(500/225)/(ln1.15)

t=5.713 years

image down below im stuck on it thx :)

Answers

Answer:

there is no image ...........

need answer now! thank you if you answer​

Answers

Answer: 1/8 x, the second option

Step-by-step explanation:

(5)(1/8)(x) = 5/8 x

(11)(1/8)(x) = 11/8 x

Both have 1/8 * x in common

1/8 * x = 1/8 x

A movie theater charges $4.50 for children and $8.00 for
adults
The next day, the manager announces that she wants to see
them take in $10,000 in tickets. If there are 240 seats in the
house and only five movie showings planned that day, is it
possible to meet that goal?

Answers

Answer:

No, the max is $9600.

Step-by-step explanation:

240 x 8=1920.

1920 x 5=$9600.

It’s not possible
Because 240 seats times the highest cost which is $8 will be $1920 and if you times that by 5 movies the total will be $9,600. So it’s not possible to make $10,000.

Hope this helps.

Martha biked 55 miles per day and Enrico biked 145 miles every 3 days. After 6 days, which statement correctly compares the number of miles they each biked

Answers

Answer:

After 6 days Martha biked 330 miles, while Enrico biked 290 miles.

Step-by-step explanation:

i. Martha bikes 55 miles per day.

So that after 6 days, Martha would have covered;

55 miles x 6 = 330 miles

After 6 days, Martha would have biked 330 miles.

ii. Enrico bikes 145 miles every 3 days.

Then after 6 days, Enrico would have covered;

[tex]\frac{6 days}{3 days}[/tex] x 145 miles

= 2 x 145 miles

= 290 miles

After 6 days, Enrico would have biked 290 miles.

After 6 days Martha biked 330 miles, while Enrico biked 290 miles.

Instructions to make a dress say that the length of a piece of yellow fabric should be 80 inches more than the length of a piece of black fabric. How long is the length of the yellow fabric if the black fabric is 52 inches long?

Answers

Answer:

I think  that the length of the yellow piece of fabric is either 28 inches longer then the black piece of fabric because 52-80=28. Or if you add 80+52 then it will equal 302 inches long

52inches + 80inches = 132inches

Write down the 3rd term in the sequence given by: T(n) = 2n² + n

Answers

Answer:

T(3) = 21

Step-by-step explanation:

To find the third term, substitute n = 3 into T(n) , that is

T(3) = 2(3)² + 3 = 2(9) + 3 = 18 + 3 = 21

Humberly has $24 and they want to buy at least 8 containers of yogurt. Yogurt is packaged in both large and small containers. Large cost $4, and small container cost $2

Answers

Answer:

Hence he will be 4 large containers and 4 small containers

Step-by-step explanation:

Given data

Let the number of small containers be x

and the number of large containers be y

x+y= 8---------1

also

2x+4y= 24-----2

the system of equation to solve the problem is

x+y= 8

2x+4y= 24

from 1

x=8-y

put this in 2

2(8-y)+4y= 24

16-2y+4y= 24

2y= 24-16

2y= 8

y= 8/2

y= 4

put y= 4 in 1

x+4=8

x= 8-4

x= 4

Hence he will be 4 large containers and 4 small containers

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