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solong [7]
3 years ago
7

I need help with question one & two

Mathematics
1 answer:
Zolol [24]3 years ago
6 0
The atomic number above the element is the number of protons inside of it.
That’s number 1 so answer is 169.
Number 2 is H because in the description above it states it is highly reactive
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How do you you divide 67by6
Law Incorporation [45]
You first set it up as long division. 
Second you would find out how many times 6 goes into 67, so count by 6's until you get close 67.
Third once you get that number you write it on top of the long division and then you would subtract whatever that number is below which is 66 because 6 * 11= 66.
So then you would subtract 67 minus 66 which would be 1. Then go from there and you'll get your answer.

Hope this helps!
6 0
3 years ago
Can someone help me with this??
Umnica [9.8K]

Answer:

divide by 2

Step-by-step explanation:

5 0
3 years ago
(5x-25)+(3x+9)=180 please answer right now
jok3333 [9.3K]

Answer:

x=24.5\\

Step-by-step explanation:

So we have the equation:

(5x-25)+(3x+9)+180

Combine like terms:

(5x+3x)+(-25+9)=180

Add:

8x-16=180

Add 16 to both sides:

8x=196

Divide both sides by 8:

x=24.5\\

So, our answer is 24.5 :)

6 0
3 years ago
How can 6691 divided by 28 66 can go into 3?
olya-2409 [2.1K]
If you want to know wheather 3 can go into a number,heres a trick add up the Numbers tge sum is divisible by 3 then the number itself is divisible by 3
7 0
3 years ago
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How do I solve 3x-7y=63 and 4x+3y=-27by addition?
blagie [28]
Multiply eqn 1 by 3 and eqn 2 by 7 then adding them will cancel Y. and X can be found.
5 0
3 years ago
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