Question 1

Pete Smith bought two new car tires from Firestone for $89.95 per tire. Firestone charged Pete $3.25 per tire for mounting, $2.60 per tire for valves, and $3.80 per tire for balancing. What is Pete's final bill?

Accepted Answer

Multiply each value by 2, vertically write the products so the decimal places align, and add the values. ($9.65 = $3.25 + $2.60 + $3.80)

Question 2

Best Buy sold 638 iPads during the month of May for a total, including tax, of $296,963.48; what was the average cost to the consumer?

Accepted Answer

To find the average cost to the consumer, divide the total sales amount by the number of iPads sold: $296,963.48 / 638 = $465.46.

Question 3

Norm's electric bill for December 2013 was $149.32. In 2014, the electric bill was $194.31. Next year Norm expects the bill to be the 2013 amount plus $25.00 more than the difference between 2013 and 2014. What is the new bill expected to be?

Accepted Answer

The difference between Norm's 2013 and 2014 bill is $194.31 - $149.32 = $44.99.
So, the new bill is expected to be: 
2013 amount + $25.00 more than the difference between 2013 and 2014
= $149.32 + $25.00 + $44.99
= $219.31. 
Therefore, the answer is C.

Question 4

Nancy Billows bought 150 shares of NBC Universal stock at $22.885 per share. Her broker charged her $22.05 for the brokerage commission. What is the average cost per share (include brokerage fee) to the nearest cent?

Accepted Answer

To find the average cost per share, we need to add the cost of the shares and the brokerage commission, then divide by the total number of shares:
Total cost = (150 x $22.885) + $22.05 = $3,472.28 + $22.05 = $3,494.33
Average cost per share = $3,494.33 / 150 = $23.03 (rounded to the nearest cent)

Question 5

On December 10, 1999, Apple Computers' stock was valued at $615 billion; Microsoft's stock was valued in that quarter at $271 billion. How much more value is Apple's stock at its peak over Microsoft?

Accepted Answer

To find out how much more value Apple's stock is at its peak over Microsoft, we need to subtract Microsoft's value from Apple's value:

$615 billion - $271 billion = $344 billion

Therefore, the answer is D) $344 billion.

Question 6

During the Great Recession that began in January 2008, average weekly claims for unemployment were 420,000. The normal weekly average during full employment is 122,000. How many more people were filing for unemployment in January 2008?

Accepted Answer

The difference between the average weekly claims during the Great Recession (420,000) and the normal weekly average during full employment (122,000) is 298,000.

Question 7

Divide (round to nearest tenth):
338,182 ÷ 6.94

Accepted Answer

Turn 6.94 into the whole number 694 and also move the decimal place in 338,182 two places to the right before dividing.
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Question 8

Multiply (round solution to nearest hundredth):
7.541 × 12.943

Accepted Answer

7.541 multiplied by 12.943 equals 97.60 rounded to the hundredths place.
 11eb6926_6ed2_e2a4_bb3a_d9415881495e_TB8249_00

Question 9

The average weekly pay at Wendy's is $412.88. Bill Long earns $485.11. How much is Bill over the average?

Accepted Answer

Align the minuend and the subtrahend on the decimal places before subtracting.

Question 10

Jill traveled to Canada and bought a new lamp for $460 in Canadian currency. In U.S. dollars (to the nearest cent) this is equivalent to: (Use Handbook)

Accepted Answer

The conversion rate from Canadian dollars to U.S. dollars is approximately 0.796, so $460 CAD * 0.796 = $366.57 USD.

Question 11

Abby is touring China for four days. The car rental is $38.15 per day plus 12 1/2 cents per mile. If Abby drives 380.5 miles, how much does she owe the rental company?

Accepted Answer

The answer of Abby is touring China for four days....

Question 12

Melvin Small typed 485 business letters. The cost of writing these letters was estimated to be $3,455.25. What was the average cost of a letter to the nearest cent?

Accepted Answer

To find the average cost of a letter, we need to divide the total cost by the number of letters:

$3,455.25 / 485 = $7.12 (rounded to the nearest cent)

Therefore, the answer is choice C.

Question 13

Jim sells college textbooks. To date Jim has sold $141,002 worth of textbooks. His sales quota is $194,159. Tomorrow he expects to sell $15,005 worth of textbooks to B College. His last stop will be Munroe College. If he sells what he expects to at B College, what must he sell at Munroe to meet his quota?

Accepted Answer

Jim needs to sell $194,159 - $141,002 = $53,157 more to meet his quota. After selling $15,005 to B College, he will need $53,157 - $15,005 = $38,152 at Munroe College.

Question 14

The price of deli cuts was $2.255 per pound at Bill's Market. Bob's Market advertises the same deli cuts for $1.999. How much cheaper is Bob's Market per pound? (Round answer to nearest cent.)

Accepted Answer

Align the minuend and the subtrahend on the decimal places before subtracting.

Question 15

Joyce went to Lowes to buy carpeting. She will need 88.4 sq. yards for downstairs, 15.1 sq. yards for the halls, and 177.18 sq. yards for the upstairs bedrooms. She chose a commercial carpet that costs $18.11 per sq. yard. Joyce ordered foam padding at $3.25 per sq. yard. The installers quoted Joyce a labor cost of $4.25 per sq. yard for installation. What will the total job cost Joyce?

Accepted Answer

The answer of Joyce went to Lowes to buy carpeting....

Question 16

Rearrange and add:
3.5, 10.86, 7.482, 150.0413, 89.1

Accepted Answer

Place extra zeros to the right of the decimal points and align on the decimal point before adding.
 11eb6926_6ed2_9482_bb3a_29044ce64080_TB8249_00

Question 17

Last week Alice Roe earned wages of $459.82. Payroll deductions included Social Security for $33.19 and federal income tax of $82.91. What is Alice's net pay?

Accepted Answer

To find Alice's net pay, we need to subtract the payroll deductions from her gross pay (wages earned). 
$459.82 (gross pay) - $33.19 (Social Security) - $82.91 (federal income tax) = $343.72 (net pay) Therefore, the answer is D.

Question 18

Mike Roland traveled 10,850 miles. His Ford truck averaged 16 miles per gallon. Assuming a gallon of gas cost $2.10, what was Mike's gasoline cost for the trip?

Accepted Answer

The answer of Mike Roland traveled 10,850 miles. His Ford...

Question 19

In 2010, America's Healthcare cost $14,009 per family. Assuming a growth rate of 8.5% a year with a forecasted cost of $21,065 in 2015, how much more will a family pay in 2015?

Accepted Answer

The increase in cost from 2010 to 2015 is $21,065 - $14,009 = $7,056.

Question 20

Facebook's initial IPO was $38 per share. Arianna purchased 616 shares. Assuming a cost of $7.00 to purchase the 616 shares, what was Arianna's total cost?

Accepted Answer

Arianna's total cost is the sum of the cost of the shares and the cost of the purchase. The cost of the shares is 616 * $38 = $23,408. The cost of the purchase is $7.00. Therefore, Arianna's total cost is $23,408 + $7.00 = $23,415.

Quiz 3: Decimals