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A baker is using a cookie recipe that calls for 3 ¼ cups of flour to yield 64 cookies. How much flour will the baker need to make 130 cookies using the same recipe?

A. 6 77/128 cups

B. 5 5/128 cups

C. 10 1/28 cups

D. 4 81/128 cups

Answer Explanation:

we are asked to find the number of cups of flour that will be used to make 130 cookies.

First, we convert 3 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 64, the above equation result to

Thus, the number of cups of flour needed to make 130 cookies is 845/128 cups, which is equal to 6 77/128 cups.

Therefore, the Correct Answer is A.

More Questions on TEAS 7 Math

  • Q #1: Which of the following is the median of the date set below? 9, -7, 1, -4, 3

    A. -7

    B. 1

    C. 3

    D. -4

    Answer Explanation

     The median of a data set is determined by arranging the numbers in ascending orders, and the median is the number the falls in the middle position.

    -7, -4, 1, 3, 9

    There are five numbers in the data set, and the median falls in the third position from either side. Thus, 1 fall in the third position.

  • Q #2: A pharmaceutical company’s stock price was $33.65 on Monday. On Tuesday, the price went up $1.23. On Wednesday, the price decreased from Tuesday’s price by $0.97. On Thursday, the price went up $2.75 from Wednesday’s price. Which of the following was the final price on Thursday?

    A. $33.65

    B. $33.91

    C. $34.88

    D. $36.66

    Answer Explanation

    The final price of the stock on Thursday can be found by finding the price on the previous day taking into account the price changes as follows.

    The price of the stock on Monday was $33.65

    On Tuesday the price of the stock went up by $1.23 from Monday’s price. Then, Tuesday’s price was $(33.65+1.23)=$34.88

    The price of the stock on Wednesday decreased by $0.97 from Tuesday’s price. The price on Wednesday became $(34.88-0.97)=$33.91

    Thursday’s price increased by $2.75 from Wednesday’s price, which was $(33.91+2.75)=$36.66

    Therefore, the final price of the stock on Thursday was $36.66.

  • Q #3: A recipe calls for 5/7 cup of flour for every 2 3/5 cup of milk. To make a bigger batch, the chef uses 3 cups of flour. Which of the following would be the amount of milk needed for the bigger batch?

    A. 12 1/5 cups

    B. 12 2/5 cups

    C. 8 9/25 cups

    D. 10 23/25 cups

    Answer Explanation

    To find the required number of cups milk needed, we set a proportion equation with number of cups be numerator and cups of milk as denominator.

    Let x be the number of cups of milk needed, then

    The numbers of cups of milk required is 273/25, which when converted to mixed fraction becomes 10 23/25.

  • Q #4: -2/9, -0.9, -1.7, -4/7 Of the number listed above, which number is the greatest?

    A. -0.9

    B. -4/7

    C. -1.7

    D. -2/9

    Answer Explanation

    The initial step is to convert the decimal options to fractions. Then, we find the LCM of the denominators of all fractions, which will be used to compare the values of the given options.

    -0. becomes -9/10

    -1.7 becomes -17/10

    Then, the resulting denominators are 9, 10, and 63. Their LCM of 630 is used to multiply each fraction.

    -2/9*630=-140

    -9/10*630=-567

    -17/10*630=-1071

    -4/7*630=-360

    From the calculations above, -140 is the greatest value of all the values. Thus, -2/9 is the greatest number.

  • Q #5: The American with Disabilities Act (ADA) requires that the slope of a wheelchair ramp be no greater than 1:12. Which of the following is the minimum length of a ramp needed to provide access to a door that is 5.0 feet above the sidewalk?

    A. 60 feet

    B. 145 feet

    C. 32.5 feet

    D. 30 feet

    Answer Explanation

     To find the minimum length requires, we need to understand what slope in the question represents. The slope represents the ratio between the height to the length. Let x be the minimum length of the ramp. Then,

    Now, we find the value of x by cross-products as follows

                                       

    Thus, the minimum length required to provide access is 60 feet.

  • Q #6: A recipe calls for 6 teaspoons of vanilla. 1 teaspoon equals approximately 4.93 mL. Which of the following is the correct amount of vanilla in mL?

    A. 34.33 mL

    B. 29.58 mL

    C. 25.59 mL

    D. 12.32 mL

    Answer Explanation

    To find the amount of vanilla in mL, we set up an equation in a way the unwanted units cancel out and leave the wanted unit we are looking for. Then,

    Thus, a recipe of 6 teaspoons equals 29.58 mL.

     

  • Q #7: A person weighed themselves at 160 lb. Three months later they weighed themselves at 130 lb. Which of the following is the percent of weight the person lost over 3 months? (Round to the nearest percent.)

    A. 20%

    B. 13%

    C. 19%

    D. 29%

    Answer Explanation

     the percentage change in weight is found by calculating change in weight over original multiplied by 100%.

    First, find the change in weight over the 3 months

    Change in weight lost= 1860-130=30 lb

    Thus

    The percent change in weight is 19% to the nearest whole number.

  • Q #8: To determine the cost of a meal, the restaurant considers the quantity of the meal, the number of toppings, and the types of spices. Which of the following is the dependent variable?

    A. Size of meal

    B. Cost of meals

    C. Type of spices

    D. Number of toppings

    Answer Explanation

    A dependent variable changes with any change made in an independent variable. From this case, cost of meals depends on other three options. In other words, the quantity of meal, number of toppings, and types of spices influence the cost of the meal.

  • Q #9: Which of the following values is the greatest?

    A. 3/8

    B. 6.25

    C. 10/7

    D. 7.4

    Answer Explanation

    To find the greatest number from the given options, convert the decimal numbers into fractions.

    6.25 becomes 625/100

    7.4 becomes 74/10

    The LCM for the denominators of 8, 100, 7, and 10 is 2800. Now we can multiply each fraction with the LCM.

    3/8*2800=1050

    625/100*2800=17500

    10/7*2800=4000

    74/10*2800=20720

    The fraction 7.4 is the greatest of all.

  • Q #10: A circle has an area of 64π in2. Which of the following is the circumference of the circle in terms of pi ( π)?

    A. 9 π in

    B. 16 π in

    C. 4 π in

    D. 8 π in

    Answer Explanation

     we need determine the radius of the circle before we can find the circumference of the circle from the given area.

    Let r be the radius of the circle, then

    Substituting the value of area

    Dividing both sides by pi and taking square root on both sides yields

    Now, the radius of the circle is 8 in. and the circumference of the circle is given by the relation: