Answer:
9.03x10^16---------1.5x10^-7 helium
2.709x10^24-------4.5 nitrogen
1.9264x10^28-------3.2x10^4 hydrogen
4.8782x10^14--------8.1x10^-10 xenon
Step-by-step explanation: i got it right PERIOD PURRRRR
The answer is 11x11x11=1331
Answer:
48 students in science
Step-by-step explanation:
Let r = students in robots club
s = students in science club
r+s = 84
s = r+12
Substitute the second equation into the first
r+(r+12) = 84
Combine like terms
2r+12 = 84
Subtract 12 from each side
2r = 84-12
2r = 72
Divide by 2
r = 72/2 = 36
We need to find s
s = r+12
s = 36+12
s = 48
There are 48 students in the science club
S= B - 72
B= B
180= B+B-72
180= 2B-72
252= 2B
126 = B
B =126
S= 126-72
S=54
Answer:
32 multiplied by 8 over 31 8 over 32 plus
Step-by-step explanation:
i think this is the answer not quite sure tho