Answer:
the anwser is x and it represents 350
Step-by-step explanation:
350/ x+20 + 350/ x-20 = 6
3:5
60:100
90:150
120:200
15:25
150:250
180:300
210:350
180,000 people
2/5= 0.4
0.4x450,000=180,000
3 tens , 105 tens , 1050
