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Simplify the expression below. Which of the following is correct? \(\frac{[3 (2 + 6 \ast 4)]}{(26 \div 2)}\)  

A. 6

B. 8

C. 12

D. 9

Answer Explanation:

We follow the order of operations to solve the given expression.

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

[3(2+6*4)]

We start with multiplication in inner brackets, 6*4=24. The expression becomes

[3(2+24)]

Then, we conduct the addition of 2+24=26. Then, the expression becomes

[3(26)]=3*26=78

Now, we solve for denominator, which is 26/2=13.

Thus, the expression is reduced into

\(\frac{[3(2+6\ast4)]}{(26\div2)}=\frac{78}{13}=6\)

The expression reduces into 6.

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: Which of the following is the decimal equivalent of 9/26?

    A. 0.28

    B. 3.6

    C. 3.86

    D. 0.35

    Answer Explanation

    9/26 is equivalent to 9÷26. The value becomes 0.3461538.

    Thus, 0.35  is the decimal equivalent of 9/26.

  • Q #3: -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.