Andrew's salary is 1200 a month plus 4% commission on all his sales. What must the amount of his sales be to earn at least 1600 each month.

I know the answer has to be around 10,000 but can you show me how to set up the problem to solve it?

1200 + .04 s ≥ 1600

.04 s ≥ 400

s ≥ 10000

Umm Daniela are you sure about that? I’m pretty sure 400/.04 is 10,000....

To solve this problem, you need to set up an equation that represents the monthly salary that Andrew wants to earn. Let's break it down step by step:

1. Let's start by expressing Andrew's salary equation. It consists of two parts: the fixed salary of $1200 per month and the commission based on his sales. The commission is calculated as 4% of his sales.

Let's represent Andrew's sales as "x". Thus, the commission that he will earn per month is 4% of "x," which can be written as 0.04x.

2. Now that we have the commission, we can add it to Andrew's fixed salary to get the total amount he wants to earn per month. We want this total amount to be at least $1600.

Therefore, the equation we can set up is:

fixed salary + commission >= target earnings

$1200 + (0.04x) >= $1600

3. Now we can solve this equation to find out the minimum amount of sales "x" required for Andrew to earn at least $1600 per month.

First, let's subtract $1200 from both sides of the equation:

(0.04x) >= $1600 - $1200

(0.04x) >= $400

To isolate "x," we can divide both sides of the equation by 0.04:

x >= $400 / 0.04

The result is:

x >= $10,000

Therefore, Andrew needs to make sales of at least $10,000 per month to earn at least $1600.

0.04x = 1600

x = 1600/0.04

As you can see -- your answer is wrong.

1200 + .04 s ≥ 1600

.04 s ≥ 400

s ≥ 16
Scoot got most of it right, but 400 by .04 is 16