It's easier if you know 1 minutes = ... miles
If, 80 minutes = 8 miles
Then, 1 minute = 0.1 mile
Therefore 210 minutes = 210 . 0.1 miles = 21 miles
Answer:
100 gm calcium, 30gm carbon and 120gm oxygen
Step-by-step explanation:
10% of a kg is 100gm of calcium, 3% of 1 kg is 30gm of carbon and 12% of a kg is 120gm of oxygen
Answer is 210/39.37 metres because you divide by number of inches to get metres
1.4 or 1 4/10. Just subtract.