A sport utility vehicle travels 386.4 miles on 14 gallons of gas. Which of the following represents the constant proportionality of miles per gallon?
A. 372.4
B. 13.8
C. 27.6
D. 5,409.6
The constant of proportionality is the distance traveled divided by gallons of gas consumed
Constant of proportionality = 386.4 miles/14 gallons = 27.6 miles per gallon.
Therefore, the Correct Answer is C.
More Questions on TEAS 7 Math
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Q #1: Which of the following values is the greatest?
A. 4.25
B. 10/3
C. 4.4
D. 9/2
Answer Explanation
To compare the given values, convert them to the same number format. In this case, convert the given fractions into equivalent decimals.
10/3=3.3333…..
9/2=4.5
Thus, the numbers become 4.25, 3.333…, 4.4, 4.5
Now arranging them in ascending order becomes 3.333…., 4.25, 4.4, 4.5
From the above, 4.5 is the greatest value.
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Q #2: Which of the following measurements is the approximate metric equivalent of 7 inches?
A. 3.2 cm
B. 2.8 cm
C. 15.4 cm
D. 17.8 cm
Answer Explanation
Use the relation 1 inch=2.54 cm to change 7 inches to cm
Thus, 7 inches is about 17.8 cm.
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Q #3: The length of a rectangle is 3 units greater than its width. Which expression would correctly represent the perimeter of the rectangle?
A. 2W+2[W+3]
B. W+W+3
C. W[W+3]
D. 2W+2[3W]
Answer Explanation
Let width of the rectangle be W. We are told that length, L is 3 units greater than width. Then,
L=W+3
And perimeter of the rectangle is given by the relation, P=2(L+W]=2L+2W
In place of L substitute W+3. Thus,
P=2[W+3]+2W
