Mathematical Models with Applications - QCHSMA4072 Exam Questions And Answers 100% Pass
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Course
Mathematics
Institution
Mathematics
Mathematical Models with Applications -
QCHSMA4072 Exam Questions And
Answers 100% Pass
Determine the correct equation for the following verbal sentence:
The total distance traveled, d, at a constant speed of 45 miles per hour is the product of the speed and
the number of hours traveled, h. - ...
Mathematical Models with Applications -
QCHSMA4072 Exam Questions And
Answers 100% Pass
Determine the correct equation for the following verbal sentence:
The total distance traveled, d, at a constant speed of 45 miles per hour is the product of the speed and
the number of hours traveled, h. - answer✔d = 45h
Translate the sentence into an equation using n as the unknown number. Then solve the equation for n.
Round to the nearest hundredth if necessary.
The quotient of a number divided by 6 is 3.5. - answer✔B.
What is the verbal phrase for the following expression? 5n - answer✔five times a number
The formula for the circumference of a circle is . Determine the circumference when the radius r is 10
cm. - answer✔B.
If n stands for number sold and c stands for cost per item, in which column would you use the formula: -
answer✔WRONG - column E
An automobile factory is assembling cars and they need to have all of the parts in stock at the assembly
line. Each car needs four tires and a spare tire for the trunk. If they produce c cars per day, what formula
shows how to calculate the number of tires, t, needed? - answer✔WRONG - A.
If i stands for income and e stands for expenses, what is the formula for p, profits? - answer✔D.
Translate the sentence into an equation using n as the unknown number. Then solve the equation for n.
Two times a number increased by 5 is 15. - answer✔WRONG - D.
An algebraic equation is an equation that includes: - answer✔one or more variables
A paratrooper jumps from a plane at an altitude of 4500 ft and descends at the rate of 20 ft/sec. What is
the formula for the paratrooper's height, h, above the ground after t seconds? - answer✔B.
A basketball player made 36 free throws in 16 games. Find the ratio of free throws to games. -
answer✔9:4
Solve the proportion. - answer✔D. -17/3
48/8 = 42/x
Please select the best answer from the choices provided - answer✔B. x=7
At Whitewater Junior High School, there are 360 students and 39 teachers. What is the ratio of students
to each teacher rounded to the nearest tenth? - answer✔9.2:1
A baseball player made six hits in nine innings. What is the ratio of hits to innings? - answer✔2:3
n/39 = 8/13 - answer✔C. n = 24
n/32 = 1/16 - answer✔C. n = 2
There are 84 boys in a freshman class of 146 students. Find the ratio of boys to girls. - answer✔42:31
There are 96 girls in a junior class of 176 students. Find the ratio of girls to boys. - answer✔6:5
During the past school year, there were 640 students and 52 teachers. What is the ratio of students to
each teacher rounded to the nearest tenth? - answer✔12.3:1
Jewelry is commonly weighed in carats. Five carats are equivalent to one gram. How many grams of gold
are contained in a 24-carat gold chain? - answer✔4.8 g
The scale on a map states that 1 centimeter corresponds to 20 kilometers. On the map, two cities are
0.3 cm apart. Find the actual distance. - answer✔6 km
The following places are three of the wettest locations on Earth. For each site, determine the rainfall in
centimeters per year and fill in the missing information. Use the conversion equivalency of 2.54
centimeters (cm) = 1 inch. - answer✔1186.18 cm, 1177.29 cm, 1041.4 cm
The distance between New York City, New York and Los Angeles, California is approximately 4485
kilometers. What is the distance between these two major cities in miles? Use the conversion
equivalency of 1 mile = 1.609 kilometers and round to the nearest mile. - answer✔WRONG - 7216 miles
To estimate the size of the grizzly bear population in a national park, rangers tagged and released 12
grizzly bears into the park. A few months later, 2 out of 21 grizzly bears sighted were tagged. Assuming
the population of tagged bears in the population, estimate the number of grizzly bears in the population
of this national park. - answer✔126 grizzly bears
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