Answer:
P = $6923
Step-by-step explanation:
The simple interest formula is given by
1) I = principal *interest rate * time period
where I is the interest
The amount due after the time period is given by:
2) T = principal + I
After three months, you have $9.000, so T = 9000. The present value P is the principal. We have that:
9000 = P + I
I = 9000 - P
In our problem, we have that the time period is 3 months and out interest rate is 10%.
Replacing in 1)
9000 - P = P*0,1*3
9000 = 0.3P + P
1.3P = 9000
P = $6923
So the present value P is $6923
12.) This does not follow the rule of conservation because on the reactant side there is one Na and two Cl while the product side only has one Na and Cl. They are not equal and do not have the same number of atoms for the different elements. In the law of conservation matter cannot be created or destroyed and this does not follow the law.
13.) 2Na + Cl2 —> 2NaCl
Put a 2 in front of Na and a 2 in front of NaCl
Answer:
-7
Step-by-step explanation:
-4(2)=-8
-8+1=-7........
Answer:
0.39
Step-by-step explanation:
Answer is b. A calculator to work out the answer
