Answer :
Answer:
you must make 8250 sale in a week
Step-by-step explanation:
let the number of sale be x
let the total amount earned be y
The first job
7% of x= 0.07x
y=0.07x----------------1
The second job
$330
3% of x= 0.03x
y=330+0.03x-------------2
equating 1 and 2 we have
0.07x=330+0.03x
solving for x we have
330=0.07x-0.03x
330=0.04x
divide both sides by 0.04 we have
330/0.04=x
x=8250
you must make 8250 sale in a week