Answer:
450 minutes
Step-by-step explanation:
15 + 0.1x = 60
15 - 15 + 0.1x = 60 - 15
0.1x = 45

x = 450
You will get the incorrect answer because lining up the digits when adding or subtracting is important but it isn’t needed for multiplying.
Answer:
10-35-45 and 5-17.5-22.5
Step-by-step explanation: