# At your job, you are paid $50 per week plus $3 per sale. At least how many sales do you need to make in order to have over $250?

##### 1 Answer

#### Answer:

To have over $250 you should make at least 67 sales.

#### Explanation:

The formula for calculating salary is:

However because question states "to have over $250

We know the total salary we are shooting for, we know the base pay and we know the commission rate. We can substitute these into the equality and solve the inequality for

Assuming sales are in whole units or integer units then to make more than $250 the solution should be rounded up to the next whole number -