The journal entry to record this transaction consists of a: debit of the purchases account for $21400 and credit the accounts payable account for $21400
<h3>How to enter a transaction in a journal?</h3>
We are told that a company purchased $21,400 of supplies on credit.
Now, it is vital to note that in a journal, there is the credit column and also the debit column.
Now, the way we carry out recording the Journal Entry for a Credit Purchase is that;
When a business purchases goods or services on credit, the business will then debit the purchases account, which will increase the business’s assets.
The business will also credit the accounts payable account, which will increase the business’s liabilities.
Thus;
The journal entry to record this transaction consists of a: debit of the purchases account for $21400 and credit the accounts payable account for $21400
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They are inverse of logarithmic equations. The value of b to the nearest tenth is 0.1
<h3>Exponential equations</h3>
They are inverse of logarithmic equations. Given the exponential function that modelled the penicillin concentration, in micrograms per milliliter as shown:

If the value of P(t) is 10, hence;

Take the ln of both sides
ln0.05 = 6/5 lnb
-2.995 = 1.2 ln b
lnb = -2.495
b = e^-2.495
b = 0.08
Hence the value of b to the nearest tenth is 0.1
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