Joyce's monthly income consists of a basic salary of
$500 and a commission of 4% on her sales for the
month. If her income is $1220 for a particular
month, find her sales for that month.
$500 and a commission of 4% on her sales for the
month. If her income is $1220 for a particular
month, find her sales for that month.
Penjelasan dengan langkah-langkah:
So find the 4% of her sales first
Total income - basic salary
= 1220-500
=720
720 is equal to 4% of her sales
720/x=4/100
720/x=1/25
Do it with cross multiplication
720x25=x
x=18000$
So her sales is 18000$ for that month