Answer:
calculate the number of atom in 3 mol helium
Answer:
a
Step-by-step explanation:
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It is 804.25
2 is in the tenths place and then 5 is hundredths place
-5 because -5 plus 42 equals 37
Answer:
(3,4)
Step-by-step explanation:
first you're going to solve the equation -2x
your equation should now be:
next you're going to substitute the given value of -2x into the equation
so your equation should now be:
next you're going to solve the equation for y
equation should now be: y=4
than you're going to substitute the given value of y into the equation ×
then you're going to solve the equation for x
your equation should now be: x=3
then the possible solution of the system is the order pair: (x,y)=(3,4)