Question

Translate the sentence into an inequality . The difference of twice a number and 5 at least - 15 . Use the variable x for the unknown number.

Answer 1

Step 1:

Let the number = x

In mathematics, difference represents minus.

Step 2:

Twice a number means 2 times x = 2x

Step 3:

At least mean less than or equal to

Step 4:

`2x\text{ - 5 }\leq15`

Final answer

`2x\text{ - 5}\leq\text{ 15}`