All categories

3 years ago

Two numbers, x and y, have a sum of 8 and a difference of -14.

Mathematics

1 answer:

Lyrx [107]3 years ago

6 0

Answer: x=-3 and y = 11

Step-by-step explanation: x+y = 8 and x-y = - 14

From first solve y = 8-x and now Insert y to later

x -(8-x) = -14. x -8+x-14. 2x = -6 and x=-3. Y = 8-x = 11

You might be interested in

Which of the following points are solutions to the system of inequalities shown below?

pychu [463]

This is easy, love. It's E

3 0

2 years ago

Read 2 more answers

Libby needs to make 1/2 of her chili for the school's chili contest. If Libby usually needs 1/2 a cup of corn for her chili reci

ryzh [129]

Answer:

1/4

Step-by-step explanation:

1/4 x 2 = 1/2

1/2 divided by 2 is 1/4

5 0

2 years ago

I need these answers ASAP please if you know how to do this reply

lutik1710 [3]

Look at the attached picture⤴

Hope this will help u...

6 0

2 years ago

If A=(0,0) and B=(8,2), what is the length of AB

NeX [460]

Answer:

$\boxed{\sf Distance_{AB}= 8.24 \ units }$

Step-by-step explanation:

Here two points are given to us and we need to find the distance between the two points . The given points are , A(0,0) and B(8,2) . The distance between the two points can be found out using the Distance Formula , which is ,

Distance Formula:-

$\sf\implies \green{ Distance =\sqrt{ (x_2-x_1)^2+(y_2-y_1)^2}}$

Therefore on substituting the respective values ,we can find the Distance as ,

$\sf\longrightarrow Distance = \sqrt{ ( 0 - 8)^2 + (0-2)^2}$

Simplify the brackets ,

$\sf\longrightarrow Distance =\sqrt{ (-8)^2+(-2)^2}$

Square the numbers inside the squareroot ,

$\sf\longrightarrow Distance =\sqrt{ 64 + 4}$

Add the numbers inside the squareroot ,

$\sf\longrightarrow Distance = \sqrt{68}$

Find the value of squareroot,

$\sf\longrightarrow \boxed{\blue{\sf Distance = 8.24 \ units }}$

Hence the distance between the two points is 8.24 units .

3 0

2 years ago

PLEASE HELP ME

earnstyle [38]

So here you're using system of equations. You can solve systems by graphing, elimination, or substitution. Ill use substitution. First lets solve for x. take the second equation and add y to both sides to get x by itself:
x - y = 75
x = y + 75 now plug y+75 in for x in the first equation
x + y = 743
(y +75) +y = 743 solve for y
2y +75 = 743 subtract 75
2y = 668 divide both sides by 2
y = 334
now plug this into any of the 2 equations to solve for x i chose the second one
x - y = 75
x - 334 = 75 add 334 to both sides
x = 409
This means x, sold before the tournament is 409 and y, sold at the door is 334. That means the assistant is wrong and accidentally flipped the two answers

8 0

3 years ago

Read 2 more answers