She has 240 minutes to write because 4 x 60 = <<4*60=240>>240
She will write 2,400 words because 240 x 10 = <<240*10=2400>>2,400
She will earn $240 for the words because 2,400 x .1 = <<2400*.1=240>>240
She will earn $180 from the articles because 3 x 60 = <<3*60=180>>180
She will earn $420 in total because 240 + 180 = <<240+180=420>>420
She will average $105 an hour because 420 / 4 = <<420/4=105>>105
#### 105