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The length of a rectangular room is 5 feet greater than its width. Which of the following equations represents the area (A) of the room?

A. A=w+(w+5)

B. A=2w+2(w+5)

C. A=5(w+8)

D. A=w(w+5)

Answer Explanation:

To find the area of the room, we form an equation of find an equation relating the length and width of the rectangle. If we let the width of the room to be w, then

Width of the rectangle= w

Length of rectangle=(w+5)

Area of the rectangle, A= Length*width=(w+5)*w

A=w(w+5)

Thus, the area of the rectangular room is w(w+5).

Therefore, the Correct Answer is D.

More Questions on TEAS 7 Math

  • Q #1: Five friends are sharing a pizza. Two friend eats half of the pizza. The other three friends equally divide the rest among themselves. What portion of the pizza did each of the other three friends receive?

    A. 1/6

    B. 1/3

    C. 5/6

    D. 1/5

    Answer Explanation

    we need to find the portion of pizza shared by other three friends.

    Two friends eat half of the pizza, which is ½

    And the remaining amount of pizza, 

    Now, the other three friends share ½ amongst themselves equally. Then, each friend gets

    The other three friends each gets 1/6 of the pizza.

  • Q #2: A baker is using a cookie recipe that call for 2 ¼ cups of flour to yield 40 cookies. How much flour will the baker need to make 90 cookies using the same recipe?

    A. 6 7/18 cups

    B. 5 5/18 cups

    C. 2 3/16 cups

    D. 5 1/16 cups

    Answer Explanation

    We are asked to find the number of cups of flour that will be used to make 90 cookies.

    First, we convert 2 ¼ into improper fraction as:

    Letting x to be the number of cups of flour, we set up a proportion equation with number of cookies on numerator and number of cups of flour on the denominator becomes:

    Solve the value of x by cross-products

    Dividing both sides by 60, the above equation result to

    Thus, the number of cups of flour needed to make 90 cookies is 81/16 cups, which is equal to 5 1/16 cups.

  • Q #3: A child has collected 100 pennies, 90 nickels, 50 dimes, and 5 quarters. Which of the following charts accurately organizes the number of coins? Chart 1 Chart 2 Chart 3 Chart 4

    A. Chart 1

    B. Chart 2

    C. Chart 3

    D. Chart 4

    Answer Explanation

    C organizes the collection correctly.