Mathematics

Grade10

Easy

Question

# Write an inequality to represent the following:

Phil wants A grade on his math test. He needs at least 90% marks.

Let x represent the grade Phil gets on his test.

- x > 90
- x ≥ 90
- x < 90
- x ≤ 90

Hint:

### We are given a statement. We have to write the expression of inequality for the given statement. We have to see the limits given for the required value.

## The correct answer is: x ≥ 90

### The given statement is as follows:

Phil wants A grade on his math test. He needs at least 90% marks.

The variable x represents the grade Phil get on his test.

Phil needs at least 90% marks means, this is the minimum limit of the marks he need to get A grade. He can get any marks above 90% or 90%. But, the marks shouldn’t be below 90 %.

So, the variable x can be greater than or equal to 90%.

The sign for greater than or equal to 90% is “≥90%”

The mathematical representation of the inequality is as follows:

x ≥ 90%

This is the given inequality.

For such questions, we have to be careful about the limits.