Juan Ramirez sells suits in a major department store on weekends. He earns a commission of 5 percent on the first ten suits, and if he sells more than ten, he earns an additional 3 percent on the additional suits. Last weekend Juan sold thirteen $250 suits. What was his commission?
A. $210.40
B. $260.00
C. $147.50
D. $185.00

Question

phi · Answer

He earns a commission of 5 percent on the first ten suits,

First, find how much does it cost to buy 10 suits.  Any idea ?

danysanchy97 · Answer

$2,500??

phi · Answer

yes, 10*250 = 2500

next, find 
5% of 2500
that means  change 5% to 5/100  and figure out
$$ \frac{5}{100} \cdot 2500 $$

danysanchy97 · Answer

125?

phi · Answer

yes.  now we need to find the commission on the rest of the suits. (3 more, right?)

phi · Answer

it says he gets
5 percent plus an additional 3 percent on the next 3 suits

what percent is that ?

phi · Answer

5% + 3% is 8%

he gets 8% of 3 suits
in other words, he gets
8% of 3*250
can you figure that out ?

phi · Answer

8% of 3*250
first, change 8% to 8/100
and figure out
$$ \frac{8}{100} \cdot 3 \cdot 250 $$