Two carbon atoms and 1 oxygen atom contain 20 protons. One carbon atom and 2 oxygen atoms contain 22 protons. How many protons are there in each atom? help on this i really need this answered
for my exame​

Carbon has 6 protons while oxygen has 8 protons.

Step-by-step explanation:

Let x be the number of protons in carbon and y be the number of protons is oxygen.

ATQ:  2x+y=20 and x+2y=22. Solving it, we will get x=6 and y=8

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

75%

step-by-step explanation: