Question

The sum of twice a number, n, and 5 is at most 15. What are the possible values for the number?

Answer 1

Explanation:

Let's set up an inequality to represent the given information:

Twice the number, n, plus 5 is at most 15.

2n + 5 ≤ 15

Now, let's solve for n:

2n + 5 ≤ 15

Subtract 5 from both sides:

2n ≤ 10

Divide by 2 (since the coefficient of n is 2):

n ≤ 5

So, the possible values for the number (n) are any real numbers less than or equal to 5. In interval notation, we can express this as:

n ∈ (-∞, 5]

Answer 2

The sum of twice a number, n, and 5 is at most 15.

This is an inequality.

The sum of twice n (2n) and 5: 2n + 5

At most 15 : 2n + 5 ≤ 15

Solving for n :

2n ≤ 15 - 5

2n ≤ 10

n ≤ 5

Answer :

The possible values of n are 5 or less.