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A baker is using a cookie recipe that call for 5 ¼ cups of flour to yield 40 cookies. How much flour will the baker need to make 120 cookies using the same recipe?

A. 15 ¾ cups

B. 5 7/8 cups

C. 14 1/8 cups

D. 15 ¼ cups

Answer Explanation:

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

This is a proportion equation, and letting x be the number of cups of flour we set the equation as follows:

Solve the value of x by cross-products

Next, we convert the mixed fraction into improper fraction in order to carry out multiplication

The baker needs 15.75 cups of flour to make 120 cookies.  15.75 in mixed fraction is  

Therefore, the Correct Answer is A.

More Questions on TEAS 7 Math

  • Q #1: Which of the following is the total number of whole boxes that measure 2.5 ft * 2.5 ft * 2.5 ft that can be stored in a room that measures 12 ft * 12 ft * 12 ft, if the size of the boxes cannot be altered?

    A. 111

    B. 105

    C. 150

    D. 120

    Answer Explanation

    The number of boxes to fit the room is found as volume of the room divided by the volume of the box.

    Number of boxes:

    \(\frac{volume\ of\ the\ room}{volume\ of\ the\ box} = \frac{12ft\ *\\ 12ft\ *\ 12ft}{2.5ft\ *\ 2.5t\ *\ 2.5ft}\ =\ 110.592\)

    The approximate number of boxes that can be stored in the room is approximately 111 square feet.

  • Q #2: Solve for z in the equation above.

    A. z=rwy+x

    B. z=rw+(y/x)

    C. z=y(x+rw)

    D. z=rw-(y/x)

    Answer Explanation

    We are asked to make z the subject of the formula.

    First, we subtract y/x from both sides of the equation

    Thus, the formula for finding the value of z is  .

  • Q #3: Simplify the expression above. Which of the following is correct?

    A. 6

    B. 18

    C. 9

    D. 22

    Answer Explanation

    To simplify this expression, we follow the order of operations as follows:

    First, we start with the numerator and solve it as follows

    [2(6+3*9)]

    We start with multiplication in inner brackets, 3 * 9 = 27. The expression becomes

    [2(6+27)]

    Then, we carry out the addition of 6+27=33. Then, the expression yields

    [2(33)]=2*33=66

    Now, we solve for denominator, which is 6/2=3.

    Thus, the expression is reduced into

    The expression reduces into 22.