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stepladder [879]

3 years ago

5

Please answer correctly !!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!

1 answer:

schepotkina [342]3 years ago

7 0

Answer:

chemical mixture is a collection of molecules or atoms of different types. A mixture is distinguished from a pure substance, which has constant composition (is composed of a only one type of molecule or atom), and a unique set of physical properties (no matter how large or small a sample is observed).

Step-by-step explanation:

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7z= 21<br> 2x + 3y – z =-2 x=_y=_2=<br> x + 2y + 3z = 9

lbvjy [14]

Answer:

1) 7(3) = 21

Step-by-step explanation:

7 0

3 years ago

HELP WILL MARK AS BRAINLIST

Alinara [238K]

Hi!

Given:

$\frac{x}{-1} > -6$

Multiply both sides by $-1$

$x$

<em>Notice the sign was flipped. This is because when you multiply or divide by a negative number, you must always flip the sign!</em>

<u>Now, for the graph:</u>

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

For < or > signs, it should be an open circle. For $\leq$ or $\geq$ signs, it should be closed.

Since $x$ is less than 6, it should go to the left. Since it's a < symbol, it should be open. Therefore your answer is B.

(looks like you were right!!)

4 0

3 years ago

An amusement park sells adult tickets and children’s tickets, with adults tickets costing $5 and children’s tickets costing $3.

Katarina [22]

Answer:

Nine

Step-by-step explanation:

3 dollars for children tickets : x

5 dollars for adult tickets: y

Equation is:

3x+5y=57

Where 57 is the total amount spent

x+y=15

where 15 is the total number of tickets bought

3x+5y=57

5(x+y)=5(15)

___________________

3x+5y=57

5x+5y=75

minus the equations top to bottom=

-2x= -18

x= -18/(-2)

x=9

He bought a total of 9 children tickets

7 0

3 years ago

Read 2 more answers

Solve the system

Alexxandr [17]

Answer:

x = $\frac{2u+v}{7}$

y = $\frac{2v - 3u }{7}$

Jacobian value = 1/7

Step-by-step explanation:

Given data:

u = 2x -y

v = 3x + 2y

solving the system for x and y in terms of u and v

x = $\frac{2u+v}{7}$

y = $\frac{2v - 3u }{7}$

The value of the Jacobian = 1/7 ( solution attached below )

Image under the transformation of the triangular region with vertices ( 0,0) , (2,4) and (2,-3) in the x-y plane is attached below

5 0

3 years ago

Help help help math math help

Eddi Din [679]

Answer:

x = - 4

Step-by-step explanation:

i hope its helped. thank you !

3 0

2 years ago