Question

he sells. If she wants to make at least $338 in one day, at least how many computers does she need to sell?A computer sales associate makes $110 each day that she works and makes approximately $19 in commission for each computer that she sells. If she wants to make at least $338 in one day, at least how many computers does she need to sell?

Answer 1

Let's do this step by step.
First you have to write the problem.
$110 + 19h \geqslant 338$
h=number of hours worked.

Now, subtract 110 from each side.
Your left with,
$19h \geqslant 228$
Now you will divide each side by 19 but when dividing 19h you will leave the h.
Your left with
$h \geqslant 12$
And this will be your answer.
$h \geqslant 12 \\ she \: will\: have \: to \: sell \: at \: least \: 12 \: computers \: to \: make \: atleast \: 338$

Answer 2

Find out what number $350 is 8% of, since he makes 8% commission on sales.  In the percent formula:  a = pb

a is the part, p is the percent (as a decimal), b is the base  

350 is 8% of what number?  350 = 0.08b {substituted given values into percent formula and changed 8% to a decimal}

b = $4,375 {divided each side by 0.08}  

He needs to make at least $4375 worth of sales.