The phrase is less than divides the sentence into what should be on the left-hand side and what should be on the right-hand side of the inequality.
D
Practice makes perfect
We want to find out which of the given inequalities represents the following verbal expression.
twice a number is less than ten
Every inequality has an inequality symbol and values or expressions on either side of this symbol. In this exercise, we have the phrase is less than, so we can identify that the inequality symbol should be <.
twice a number < ten
On the left-hand side, we have a statement twice a number. These words tell us the operations that will be used in our inequality is a multiplication. To get twice a number, we multiply 2 by a number. We can write the latter part a variable n.
twice a number
2 n
On the right-hand side of the inequality symbol we have a word ten. We can write it as a constant 10. Putting these sides together, we have a complete inequality.
twice a number is less than ten
2 n < 10
Looking at the given inequalities, the above expression matches the inequality D.
