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Mathematical Models with Applications - QCHSMA4072 Exam
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Mathematical Models with Applications - QCHSMA4072 ExamGive the 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. Solution 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 expression below? 5n - Answer five times a number
The formula for the circumference of a circle is. Find the circumference when the radius
r is 10 cm. - Answer B.
If n is the number sold and c is the cost per item, which column would 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 plus an extra for the trunk. If they make c
cars per day, what formula shows how to find out how many tires, t, are required?
-Answer WRONG- A.
If i = income and e = expenses, what is the equation 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 equation 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
Select the best answer from among those listed - Answer B. x=7
There are 360 students and 39 teachers at Whitewater Junior High School. 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
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