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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: 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.

  • Q #2: Which of the following is the independent variable in the equation below? F(x)=5x+10

    A. 10

    B. F

    C. 5

    D. x

    Answer Explanation

    An independent variable is a variable that is manipulated or changed in the experiment. From the given equation, x is variable that is changed to obtain the desired outcome, F(x). Therefore, x is an independent variable.

  • Q #3: Which of the following is the appropriate unit of a measure to express the weight of a sheet of paper?

    A. Liter

    B. Milliliter

    C. Gram

    D. Kilogram

    Answer Explanation

    We required to find the units of finding the weight of a sheet of paper. The SI unit of mass of an object is kilogram. However, kilogram is a large quantity that cannot be used to measure smaller objects.

    Thus, derived units of mass are used to find the mass of other objects. In this case, the mass of a sheet paper can be recorded in grams.