Help!!! Pleasee
And thank you​

Help!!! PleaseeAnd Thank You

Answers

Answer 1

Answer:

x+y = 1

x = 3, y = -2

Step-by-step explanation:

Given the expressions

x-y = 5

x²-y² = 5

From 2:

x²-y² = 5

(x+y)(x-y) = 5 .... 3

Substitute equation 1 into 3;

(x+y)(5) = 5

Divide both sides by 5

x+y = 5/5

x+y = 1

b) To deduce x and y, we will solve the equation below simultaneously

x-y = 5

x+y = 1

Add both equations

x+x = 5+1

2x = 6

x = 6/2

x= 3

Substitute x = 3 into equation 1

Recall from 1:

x-y = 5

3-y = 5

y = 3-5

y = -2

Hence x = 3, y =-2


Related Questions

The ratio of three numbers is 1 : 4 : 2. The sum of the numbers is 35. What are the three numbers?

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Answers

Answer:

5, 20, 10

Step-by-step explanation:

If you were to multiply the 3 numbers using trial and error up to 5, then you'd get 5, 20, and 10, which have a combined sum of 30. You have multiplied the ratio by 5.

Ethan planted a tree that was 1.85 meters tall. Several years later, the tree is 5.30 meters talI.
Which equation can be used to find a, the number of meters the tree has grown

Answers

Answer:

3.45

Step-by-step explanation:

5.30-1.85= 3.45

♤sorry if I'm wrong♤

Answer:

X+1.85= 5.30

x=7.15 meters

A cone and a cylinder have the same radius and height. The volume of the cone is 100π (pi) cubic feet. What is the volume of the cylinder?

Answers

Answer:

The volume of the cylinder is [tex]300\pi[/tex] cubic feet.

Step-by-step explanation:

From Geometry we remember that volumes of a cone and a cylinder with the same radius ([tex]R[/tex]), measured in feet, and height ([tex]h[/tex]), measured in feet, are defined by the following equations:

Cone

[tex]V_{co} = \frac{1}{3}\pi\cdot R^{2}\cdot h[/tex] (1)

Cylinder

[tex]V_{cy} = \pi\cdot R^{2}\cdot h[/tex] (2)

The ratio of the volume of the cylinder to the volume of the cone is:

[tex]\frac{V_{cy}}{V_{co}} = 3[/tex] (3)

If we know that [tex]V_{co} = 100\pi\,ft^{3}[/tex], then the volume of the cylinder is:

[tex]V_{cy} = 3\cdot V_{co}[/tex]

[tex]V_{cy} = 300\pi\,ft^{3}[/tex]

The volume of the cylinder is [tex]300\pi[/tex] cubic feet.

dentify the simplest form of each ratio.
18 : 27
36 : 48
24 : 36
9 : 12
48 : 42
56 : 49
16 : 14
24 : 32
20 : 30

Answers

2:3
3:4
2:3
3:4
8:7
8:7
8:7
3:4
2:3

Job offer #2 $21/hr and 40 hr week No sick days paid every other Friday gross pay: $
FICA: $​

Answers

Answer:

they pay 61$

Step-by-step explanation:

A store sells 12 cans of soup for $7.50 How much would it cost to purchase 6 cans of soup?
​ ​

Answers

Answer:

3.75

Step-by-step explanation:

3.75 x 2 is 7.5 or 7.50

The price of a postage stamp in 1982 was $0.20. Today a postage stamp costs $0.49. What is the percent increase in the price of U.S. postage stamp?​

Answers

Answer: rate for postage purchased at the Post Office will remain at $0.55 (no change from 2020). Each additional ounce for a First Class Mail letter will cost $0.20, a five cent increase from 2020.

Step-by-step explanation:

please someone help

The point (0, 5) is the midpoint between (-18, -10) and what other point?

A. (18, 20)
B. (18, 15)
C. (20, 18)
D. (20, 20)

Answers

Answer:

The coordinates of the other point are:

(x₂, y₂) = (18, 20)

Hence, option A is correct.

Step-by-step explanation:

Given

The midpoint (x, y) = (0, 5)The first point (x₁, y₁) = (-18, -10)

To determine

The second point (x₂, y₂) = ?

Using the Mid-point formula between (x₁, y₁) and (x₂, y₂)

[tex]\left(x,\:y\right)=\:\left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)[/tex]

Here:

(x, y) is the midpoint between (x₁, y₁) and (x₂, y₂)

substituting (x, y) = (0, 5) and (x₁, y₁) = (-18, -10) in the formula

[tex]\left(0,\:5\right)=\:\left(\frac{x_2+\left(-18\right)}{2},\:\:\frac{y_2+\left(-10\right)}{2}\right)[/tex]

equating

[tex]0=\frac{x_2+\left(-18\right)}{2}[/tex]

[tex]x_2-18=0[/tex]

Add 18 to both sides

[tex]x_2-18+18=0+18[/tex]

[tex]x_2=18[/tex]

also

[tex]5=\frac{y_2+\left(-10\right)}{2}[/tex]

[tex]10=y_2+\left(-10\right)[/tex]

[tex]10=y_2-10[/tex]

[tex]10+10=y_2[/tex]

[tex]10+10=y_2[/tex]

[tex]y_2=20[/tex]

Therefore, the coordinates of the other point are:

(x₂, y₂) = (18, 20)

Hence, option A is correct.

Answer:

(x₂, y₂) = (18, 20)

Step-by-step explanation:

I hope this helps (✿◡‿◡)

24 cakes is 75% of
. what number of
cakes?
47

Answers

Answer:

35

Step-by-step explanation:

Do the butterfly multiplication method

24 x 100= 2,400

2,400/75 =32

Which graph represents the line: y= 1/2x + 1?

Answers

Answer:

The 3rd one, which has a y-intercept of (0,1) and has a point at (2,2)

Step-by-step explanation:

Answer:

Option C is the correct answer.

Step-by-step explanation:

PLEASE HELP ME I needed help yall please

Answers

no nekerlenejekejrjei 1723


Determine the smallest Integer value of x in the solution of the following inequality:

Answers

x >= -13/5

x >= - 2 ³/5

that's the final answer

Please help really desperate as it is due in a couple of hours.

A cricket ball is hit from a point A with velocity of (pi + qj)ms-1 at an angle theta above the
horizontal, i and j are the unit vectors horizontally and vertically upwards respectively. The point
A is 0.8 m vertically above the point 0, which is on horizontal ground.
The ball takes 4 seconds to travel from A to B, where B is on the ground and OB = 64 m, as
shown in the diagram. By modelling the motion of the ball as that of a particle moving freely under gravity,
a) find the value of p and the value of q

b) find the initial speed of the ball

c) find the exact value of tan theta

d )find the length of time for which the cricket ball is at least 5 m above the ground.

e )State an additional physical factor which may be taken into account in a refinement of the above model to make it more realistic.​​

Answers

the answer is b, fine the initial speed of the ball

What is 4(10x)



fastfastfastfast

Answers

Answer:

40x

Step-by-step explanation:

4(10x) =40x

The answer is 40x hope that helps :)

Solve for x:
X-12.8= -20.3

Answers

Answer:

Step-by-step explanation:

if x-12.8=-20.3

x= -20.3+12.8

x= -7.5

Answer: x= -7.5

Step-by-step explanation: Turn -12.8 to addition and add it to -20.3 which gives you -7.5

help please this is for math
best answer gets brainlist

Answers

Answer:

c

Step-by-step explanation:

1/2 is the constant of proportioanlity

4. The cost of pizzas at two different shops is shown in the graph and table
below. Choose the true statement from the choices below. *

Answers

Answer:

D

Step-by-step explanation:

i need help with this​

Answers

I got 140-210 =-50

So

50 B

And 76

60/150*350 for a red bottles

Minus 120/200*350 for b to get answer 1

110/175*350-72/180*350 for answer 2

Step-by-step explanation:

A140

B210

C220

D144

Which one of these graphs does not illustrate a function? And why

Answers

Answer:

It would be Graph D

Step-by-step explanation:

It's graph D because according to the graph, it looks like the domain has 2 ranges since it made a vertical line. And as we know, vertical lines are not considered to be functional since a domain can't have more than one range.

The answer is graphs D

I RLLY NEED HELPPP ITS STEM AND LEAF DIAGRAMS!!

Answers

Answer:

2/9 or 22%

Step-by-step explanation:

probability would be 4/18 = 2/9 = 22.2%

please help, thanks :)

Answers

Answer:  2/21

=========================================================

Explanation:

"Without replacement" means the card selected is not put back, and we do not put a copy of that card into the deck.

We have 5 yellow cards out of 5+9+1 = 15 cards total. The probability of picking yellow is 5/15 = 1/3. Let A = 1/3.

After picking that yellow card, we have 5-1 = 4 yellow left out of 15-1 = 14 total. The probability of picking another yellow card, after the first one is not replaced, is 4/14 which reduces to 2/7. Let B = 2/7.

Multiply the values of A and B

A*B = (1/3)*(2/7) = (1*2)/(3*7) = 2/21

The probability of picking two yellow cards, without replacement, is 2/21

(its not 90x+2000) I NEED HELPPP

Answers

Answer:

-90x+2000

Step-by-step explanation:

The hot air balloon is descending, this means that the m in the equation should be negative. Also because the graph is showing a decline

-5 (-3) I need help asap

Answers

your answer would be 15, when multiplying two negatives they cancel out so you would simply do 3•5 which is 15.

Solve for y:
9x + 4y = -12
Please help!!!

Answers

Answer:

        y = -⁹/₄x - 3

Step-by-step explanation:

9x + 4y = -12       {subtract 9x from both sides}

4y = -9x - 12        {divide both sides by 4}

y = -⁹/₄x - 3

-10+(-15) =

Pls help

Answers

Answer: -25

Step-by-step explanation:

Since you're adding two negatives, you will be able to add them just like if you were adding positive answers. So... 10+15=25 and all you got to do is to pop the negative in front of it.

So the final answer is -25.

What is the equation of the line that passes through (1, 2) and (8,9) in slope-intercept form?

Answers

Answer:

The equation of line that passes through (1, 2) and (8,9) in slope-intercept form is: [tex]y = x+1[/tex]

Step-by-step explanation:

The slope-intercept form of line is given by the formula:

[tex]y = mx+b[/tex]

Here m is the slope and b is the y intercept

Given

[tex](x_1,y_1) = (1,2)\\(x_2,y_2) = (8,9)[/tex]

First of all, the slope has to be found

[tex]m = \frac{y_2-y_1}{x_2-x_1}\\m = \frac{9-2}{8-1}\\m = 1[/tex]

Putting m=1 in the equation

[tex]y = x+b[/tex]

Putting the point (1,2) in the equation to find the value of b

[tex]2 = 1+b\\b = 2-1\\b = 1[/tex]

The equation is:

[tex]y = x+1[/tex]

Hence,

The equation of line that passes through (1, 2) and (8,9) in slope-intercept form is: [tex]y = x+1[/tex]

Evaluate bc + 12 when b=5 and c=2.

Answers

Answer:

The answer is 22

Step-by-step explanation:

b=5  c=2

5*2+12

10+12=22

A triangle has three angles of 36°, 34° and 110°.
Classify the triangle.
A. equilateral
B. obtuse
C. acute
D. right

Answers

The type of triangle is an obtuse triangle.

What are obtuse triangles?

A triangle is a 3-sided polygon.Every triangle has three sides and three angles, some of which may be the same. When the angles are thesame, the triangle is called an equilateral triangle.

An obtuse triangle is a type of triangle in which one of it's angles is more than 90°.

An acute triangle is a type of triangle in which none of it's angles is UpTo 90°

Also a right triangle is a type of triangle in which one of the angles is exactly 90°.

Therefore since one of the angles is 110 and it is greater than 90°, the angle is an obtuse triangle.

learn more about obtuse triangle from

https://brainly.com/question/5023725

#SPJ1

I WILL GIVE BRAINLIEST!! PLEASE DONT IGNORE!! NEED ANSWER ASAP!!

Answers

Answer:

i gotchu the first one is 3 the second one is 1

Step-by-step explanation:

Does anyone know how to do distributive property?

Answers

Answer:

Yes i do but can you pls answer my question is  

Step-by-step explanation:

 Is the Monroe Doctrine a positive or negative in regards to staying neutral and out of world affairs ? Why or why not.

Pls answer this

Answer:

Yep, look at the example below:)

Step-by-step explanation:

Basically, you start off by taking the number in front of the parantheses (in this case 6) and multiply it with the other numbers inside the parantheses (so that would be 4 and -5). 6 times 4 is 24, 6 times -5 is -30, and now you combine the two numbers (24 and -30).And voila:) !

6(4-5)

= 24-30

=  -6

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