I think the answer the answer/question is letter C
Lets say two numbers are x and y
x+y=70-----------------------eq1
x=4y--------------------eq2
4y+y=70
5y=70
y=70/5
y=14
then x=4*14
x=56
4 times (x^2-9x+8). Hope that helps!
We are given with 7.5 moles of oxygen and 7.43 moles of nitrogen.To identify the chemical formula of the compound, we divide each numner by the smaller amount between the two. Hence, oxygen is approx. equal to 1 and nitrogen is equal to 1. Hence teh formula is NO or nitric oxide.
Answer: 53
Steps:
Multiply to do 1/2x64+21
Reduce the numbers to get 32+21
Add to get 53!
