1 year ago

The combined mean and variance of falary of 250 workers of city A and B are 560 and 5497

1 answer:

7 0

I don’t know the answer to the question but I don’t know what to do with the question question but I don’t know what to do with the A 560

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Katena32 [7]

A. 5x and 2y
B. 3 and x
C. 5x and x
D. 4

8 0

2 years ago

aksik [14]

25 less than or equal too 300,not really enough information

3 0

2 years ago

vova2212 [387]

Answer:

Addition Property of Equality

Step-by-step explanation:

So we had:

$3x-2=7$

And then we got:

$3x=9$

We did this by adding 2 to both sides of the equation. When we added 2, the left side cancelled and the right side equated to 9:

$(3x-2)+2=(7)+2\\3x=9$

Since we added 2 to both sides, this is an example of the addition property of equality.

3 0

2 years ago

NARA [144]

$\dfrac{1}{4}:\dfrac{2}{3}=\dfrac{1}{4}\cdot\dfrac{3}{2}=\dfrac{1\cdot3}{4\cdot2}=\boxed{\frac{3}{8}}$

5 0

2 years ago

siniylev [52]

Answer:

im not sure but i think its c

Step-by-step explanation:

3 0

2 years ago