Here :2(6.02*10^23)(3.35*10^-23)
2*6.02*3.35
answer : 4.0334*10^1
hope this helped !
Answer:
C I think
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
i am not sure i but i think it is
The 2 equations are
18.20x+19.50y=230.10
and
x+y=12
where x is the months of original cost and y is months for new cost. Since you know that you paid for one year (12 months) you can make the second equation. Then you want to substitute the first equations x by making the second equation
x=(12-y)
18.20(12-y)+19.50y=230.10
218.40-18.20y+19.50y=230.10
1.30y=11.70
y=9
so that means you had the original rate for 3 months and the new one for 9 months
It already is rounded to the nearest hundredth
