MAT-143 Final Exam questions with
complete solutions passed
Recently, one US dollar was worth about 12.73 Mexican pesos. How much would 150 U.S.
dollars be worth in Mexican pesos? - correct answer ✔✔1909.50 Mexican pesos
Gasoline sells for 1.25-euro perr liter. What is the price in U.S. dollars per gallon? - correct
answer ✔✔$6.25 per gal
Convert the temperature, as indicated. Round your answer to the hundredths, if appropriate.
70 degrees F, into Celsius - correct answer ✔✔21.11 degrees C
Decide which of the two given prices is the better deal.
You can buy hair product in a 12-ounce bottle for $2.88 or in a 8-ounce bottle for $1.76. -
correct answer ✔✔8-ounce bottle for $1.76
What is the cost of lighting a 100-watt outdoor light for one week, if electricity costs 15 cents
per kilowatt/hour? - correct answer ✔✔$2.52/week
Of those who applied to the college, 30% were accepted and of those accepted, 10% enrolled.
What percentage of those who applied, enrolled? - correct answer ✔✔3%
963 people voted for the incumbent candidate out of 1778 voters. What percent voted for the
incumbent? (Round answer to the nearest tenth.) - correct answer ✔✔54.2%
, Find the scale ratio for a map if 1 inch on the map represents 10 miles on the ground. - correct
answer ✔✔1:633,600
A certain antihistamine is often prescribed for allergies. A typical dose for a 100 pound person is
20 mg for every 6 hours. How many mg of medicine would a 100-pound person receive in a
day? - correct answer ✔✔80 mg/day
Two measurements are given. Find the absolute difference and then find the relative difference
as a percentage. Assume that the first quantity is the compared value and the second value is
the reference value. Round answers to the nearest tenth if necessary.
Last year the total revenue for Clearline phone company was $13.7 million while the revenue
for its competitor, the Speakmore was $10.8 million. - correct answer ✔✔Absolute difference:
$2.9 million
Relative difference: 26.9%
Calculate the population density.
The population of the United States in 2015 was roughly 322 million. Express this as the number
of people per square mile. The land area of the United States is roughly 3.80 million square
miles. - correct answer ✔✔85 people per square mile
The national debt was about $17.8 trillion at the end of 2015. Express this quantity as the
number of dollars per person. Assume a U.S. population was roughly 322 million in the year
2015. - correct answer ✔✔About $55,279.50 per person
A company spent $12,600 this year on health insurance alone. If the total sales were $575,900,
what percentage of total sales was spent on health insurance? - correct answer ✔✔2.2%
complete solutions passed
Recently, one US dollar was worth about 12.73 Mexican pesos. How much would 150 U.S.
dollars be worth in Mexican pesos? - correct answer ✔✔1909.50 Mexican pesos
Gasoline sells for 1.25-euro perr liter. What is the price in U.S. dollars per gallon? - correct
answer ✔✔$6.25 per gal
Convert the temperature, as indicated. Round your answer to the hundredths, if appropriate.
70 degrees F, into Celsius - correct answer ✔✔21.11 degrees C
Decide which of the two given prices is the better deal.
You can buy hair product in a 12-ounce bottle for $2.88 or in a 8-ounce bottle for $1.76. -
correct answer ✔✔8-ounce bottle for $1.76
What is the cost of lighting a 100-watt outdoor light for one week, if electricity costs 15 cents
per kilowatt/hour? - correct answer ✔✔$2.52/week
Of those who applied to the college, 30% were accepted and of those accepted, 10% enrolled.
What percentage of those who applied, enrolled? - correct answer ✔✔3%
963 people voted for the incumbent candidate out of 1778 voters. What percent voted for the
incumbent? (Round answer to the nearest tenth.) - correct answer ✔✔54.2%
, Find the scale ratio for a map if 1 inch on the map represents 10 miles on the ground. - correct
answer ✔✔1:633,600
A certain antihistamine is often prescribed for allergies. A typical dose for a 100 pound person is
20 mg for every 6 hours. How many mg of medicine would a 100-pound person receive in a
day? - correct answer ✔✔80 mg/day
Two measurements are given. Find the absolute difference and then find the relative difference
as a percentage. Assume that the first quantity is the compared value and the second value is
the reference value. Round answers to the nearest tenth if necessary.
Last year the total revenue for Clearline phone company was $13.7 million while the revenue
for its competitor, the Speakmore was $10.8 million. - correct answer ✔✔Absolute difference:
$2.9 million
Relative difference: 26.9%
Calculate the population density.
The population of the United States in 2015 was roughly 322 million. Express this as the number
of people per square mile. The land area of the United States is roughly 3.80 million square
miles. - correct answer ✔✔85 people per square mile
The national debt was about $17.8 trillion at the end of 2015. Express this quantity as the
number of dollars per person. Assume a U.S. population was roughly 322 million in the year
2015. - correct answer ✔✔About $55,279.50 per person
A company spent $12,600 this year on health insurance alone. If the total sales were $575,900,
what percentage of total sales was spent on health insurance? - correct answer ✔✔2.2%
