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]
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
Therefore, the Correct Answer is A.
More Questions on TEAS 7 Math
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Q #1: Which of the following is the median of the data set below?? 5, -3, 10, -2, 0
A. 10
B. 0
C. 5
D. 2
Answer Explanation
Organize the date set from the smallest to the largest as:
-3, -2, 0, 5, 10
Median means one that is at the middle, and from the above-given data set, 0 falls at the middle.
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Q #2: Which of the following weights is equivalent to 3.193 kilograms?
A. 3,193,000 grams
B. 3,193 grams
C. 319.3 grams
D. 0.003193 grams
Answer Explanation
We use the relation 1 kg=1000 g to convert 3.193 kg to g
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Q #3: 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
Answer Explanation
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.
