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belka [17]
3 years ago
15

What does -2/3÷2 1/4 equal on khan academy?

Mathematics
1 answer:
Ivenika [448]3 years ago
6 0
The answer would be -8/27 I believe
You might be interested in
Solve the system using the elimination method.
Sloan [31]

Answer:

x=151/64   y=9/8 z=-51/32

Step-by-step explanation:

2x+2y+5z- (2x-y+z)=-1-2

3y+4z=-3

2x+2y+5z- (2x+4y-3z)=-1-14

-2y+8z=-15

We have two equations 3y+4z=-3 and -2y+8z=-15 (We get it due to elimination method)

3y+4z=-3 (2)

-2y+8z=-15 (-3)

6y+8z=-6

6y-24z=45

(6y+8z)- (6y-24z)= -6-45

32z=-51

z=-51/32

3y-204/32=-3

3y= -96/32+204/32

3y=108/32

y=36/32=9/8

2x+2*9/8+5*(-51/32)=-1

2x+9/4-255/32=-1

2x+72/32-255/32=-1

2x-183/32=-32/32

2x=151/32

x=151/64

8 0
2 years ago
Outcome
Luda [366]

Answer: sorry the answer is not clear.

Step-by-step explanation:

4 0
2 years ago
HURRY!! NO SPAM!!!!!!!!!!!!!!!!!!
Zielflug [23.3K]
  • 2moles of NaCl produced by 2 moles of NaClO_3
  • Let required moles be x .

\\ \bull\sf\longmapsto 2:2=3:x

\\ \bull\sf\longmapsto \dfrac{2}{2}=\dfrac{3}{x}

\\ \bull\sf\longmapsto \dfrac{3}{x}=1

\\ \bull\sf\longmapsto x=3mol

8 0
3 years ago
Read 2 more answers
Write the equation in slope-intercept form for each line based on the information given.
nexus9112 [7]

Answer:

y = -1x + 6 or y = -x + 6

Step-by-step explanation:

First, let's identify what slope-intercept form is.

y = mx + b

m is the slope. b is the y-intercept.

We know the slope is -1, so m = -1. Plug this into our standard equation.

y = -1x + b

To find b, we want to plug in a value that we know is on this line: (2, 4). Plug in the x and y values into the x and y of the standard equation.

4 = -1(2) + b

To find b, multiply the slope and the input of x(2)

4 = -2 + b

Now, add 2 from both sides to isolate b.

6 = b

Plug this into your standard equation.

y = -1x + 6

This is your equation.

Check this by plugging in the point again.

y = -1x + 6

4 = -1(2) + 6

4 = -2 + 6

4 = 4

Your equation is correct.

Hope this helps!

8 0
3 years ago
5) A letter or symbol that is used to represent a number is called a _ _ _ _ _ _ _ _.
AleksandrR [38]

Answer:

Variable or Symbol

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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