Find the value of 21 - 18 ÷ 3 · 2.
A)1 if it doesnt show A is 1 half
-
2
B)2
C)9
D)18
Do multiplication and division first.
21 - 18/3 * 2 = 21 - 6 * 2 = 21 -12 = ?
18
To find the value of the expression 21 - 18 ÷ 3 · 2, we need to follow the order of operations, also known as PEMDAS, which stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).
In this case, there are no parentheses or exponents, so we'll start with multiplication and division.
First, let's divide 18 by 3, which equals 6. Therefore, the expression becomes 21 - 6 · 2.
Next, we'll perform the multiplication. Multiply 6 by 2, which equals 12. The expression now becomes 21 - 12.
Finally, perform the subtraction. Subtract 12 from 21, which equals 9.
Therefore, the value of 21 - 18 ÷ 3 · 2 is 9.
Hence, the answer is C) 9.