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Alisiya [41]
3 years ago
6

The periodic table made by mendeleev contained ___ groups

Mathematics
1 answer:
ahrayia [7]3 years ago
4 0
I think it’s 18 !!!!
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Can u guys help me with theses questions plz will give brailist if correct
netineya [11]
For 4x^2y over 2x^8y^4 try 2 over x^6y^3
8 0
3 years ago
4 less than a number is it the same as a number decreased by 4?
beks73 [17]
Yes it is the same thing ! :)
3 0
4 years ago
please help me it is URGENT pls the first one is solve and the 2nd one is simplify I will give u lots of points thank you
klasskru [66]
I.) (5x+3)/4-(2x-4)/3=5
Clear fractions:
3·((5x+3)/4)=15x+9
4·((2x-4)/3)=8x-16
15x+9-(8x-16)=5
15x+9-8x+16=5
Combine like terms:
7x+25=5
7x=-20
x=-20/7

II.) (3/11)·(5/6)-(9/12)·(4/3)+(5/13)·(6/15)
Remember PEMDAS
So first multiply:
3/11·5/6=15/66
9/12·4/3=3/3·1/1=3/3=1
5/13·6/15=1/13·6/3=6/39=2/13
(15/66)-1+(2/13)
Combine:
15/66-1/1=15/66-66/66=-51/66
-51/66+2/3=-51/66+44/66=-7/66
Answer: -7/66 :)
7 0
4 years ago
Read 2 more answers
Change this equation, in standard form, to slope-intercept form: 2x + 3y = 18
Mandarinka [93]

Answer:

y = -2/3 + 18

Step-by-step explanation:

2x + 3y = 18       -----    here is the equation...

-2x          - 2x     -----    bring the 2x to the other side

3y = -2x + 18      -----    now you have to divide everything by 3 to get y by itself

y = -2/3 + 18       -----    Done!

6 0
3 years ago
Read 2 more answers
What is the greatest factor of 60 and 75
Radda [10]

The greatest factor of 60 and 75 is 15.

Reasoning: I found the factors and prime factorization of 60 and 75. The biggest common factor number is the GCF number. So the greatest common factor 60 and 75 is 15.

8 0
4 years ago
Read 2 more answers
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