each question on the test is worth 5 points. write an equation that represents the score out of 100 when x is the number of questions are missed

Answer 1

If each question on the test is worth 5 points and there are a total of 100 points possible, that means there are 20 questions on the test (since $100÷5=20$).

Let $x$ be the number of questions missed. If $x$ questions are missed, then the number of questions answered correctly is $20-x$.

The score can be calculated by multiplying the number of questions answered correctly by the points per question:

$$\text{Score}=(20-x)\times 5$$

To express the score out of 100, we can simplify this:

$$\text{Score}=100-5x$$

So, the equation that represents the score out of 100 when $x$ is the number of questions missed is:

$$\text{Score}=100-5x$$