**Answer:**

The percentage of time the machine is used is 69.44%

**Explanation:**

According to the given data we have the following:

Arrival rate = λ=50 per hour

Service rate = μ=72 per hour

a) Therefore, in order to calculate The percentage of time the machine is used we would have to make the following calculation:

The percentage of time the machine is used= λ/ μ

The percentage of time the machine is used=50/72

The percentage of time the machine is used= 0.6944 = **69.44%**

The percentage of time the machine is used is 69.44%

Answer: $74.25

Explanation:

Sale price of goods = $100

Worth of returned goods = $25

Term of sale = 1/10, n/30

Price if customer pays within the discount period equals :

Term of sale: 1% discount on price if the amount owed is paid within 10 days, else full amount is due in 30 days.

Actual price of goods purchased :

Goods purchased - worth of return

$100 - $25 = $75

Discount on price = 1% of $75

(1/ 100) × $75

0.01 × $75 = $0.75

Amount customer should pay:

$75 - $0.75 = $74.25

**Answer:**

the journal entry used to record the issuance of the bonds is:

January 1, $290,000 in bonds payable issued

Dr Cash 302,371

Cr Bonds payable 290,000

Cr Premium on bonds payable 12,371

since the premium will be amortized using the straight line method, the $12,371 must be divided by 10 (10 semiannual payments) = $1,237.10

the journal entry required to record the first coupon payment is:

June 30, first interest payment on bonds payable

Dr Interest expense 8,912.90

Dr Premium on bonds payable 1,237.10

Cr Cash 10,150

**Answer:**

The bad debt expense for the year was 650

**Explanation:**

bad debt expense 200 DEBIT

allowance 200 CREDIT

allowance 200 DEBIT

bad debt expense 450 DEBIT

account receivable 650 CREDIT

The bad debt expense for the year was 650

The yield to maturity, YTM, is the total return you could get from the bond if you keep the bond until it matures.

To solve:

Yield to maturity = {($1,000 x 0.08) + [($1,000 - $800/10]}/[($800 + $1,000)/2]

**Yield to maturity = 11.11%**